diff --git a/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt b/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
index bbc937f22786c1..d253a5c3f94d49 100644
--- a/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
+++ b/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt
@@ -690,6 +690,7 @@ interface CanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter letterSpacing
     getter lineCap
     getter lineDashOffset
     getter lineJoin
@@ -702,7 +703,6 @@ interface CanvasRenderingContext2D
     getter strokeStyle
     getter textAlign
     getter textBaseline
-    getter textLetterSpacing
     getter textRendering
     getter wordSpacing
     method arc
@@ -759,6 +759,7 @@ interface CanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter letterSpacing
     setter lineCap
     setter lineDashOffset
     setter lineJoin
@@ -771,7 +772,6 @@ interface CanvasRenderingContext2D
     setter strokeStyle
     setter textAlign
     setter textBaseline
-    setter textLetterSpacing
     setter textRendering
     setter wordSpacing
 interface ChannelMergerNode : AudioNode
@@ -4249,6 +4249,7 @@ interface OffscreenCanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter letterSpacing
     getter lineCap
     getter lineDashOffset
     getter lineJoin
@@ -4260,7 +4261,6 @@ interface OffscreenCanvasRenderingContext2D
     getter shadowOffsetY
     getter strokeStyle
     getter textAlign
-    getter textLetterSpacing
     getter textRendering
     getter wordSpacing
     getter textBaseline
@@ -4316,6 +4316,7 @@ interface OffscreenCanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter letterSpacing
     setter lineCap
     setter lineDashOffset
     setter lineJoin
@@ -4328,7 +4329,6 @@ interface OffscreenCanvasRenderingContext2D
     setter strokeStyle
     setter textAlign
     setter textBaseline
-    setter textLetterSpacing
     setter textRendering
     setter wordSpacing
 interface Option
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.cc b/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.cc
index 5d8a3cbe87d75f..9dacc8791c8cea 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.cc
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.cc
@@ -2404,8 +2404,8 @@ void BaseRenderingContext2D::CheckOverdraw(
   WillOverwriteCanvas();
 }
 
-double BaseRenderingContext2D::textLetterSpacing() const {
-  return GetState().GetTextLetterSpacing();
+double BaseRenderingContext2D::letterSpacing() const {
+  return GetState().GetLetterSpacing();
 }
 
 double BaseRenderingContext2D::wordSpacing() const {
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.h b/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.h
index da62d250d743a9..141ea872c50433 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.h
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/base_rendering_context_2d.h
@@ -327,7 +327,7 @@ class MODULES_EXPORT BaseRenderingContext2D : public GarbageCollectedMixin,
   String textBaseline() const;
   void setTextBaseline(const String&);
 
-  double textLetterSpacing() const;
+  double letterSpacing() const;
   double wordSpacing() const;
   String textRendering() const;
 
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.cc b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.cc
index cfe1ccc60910a8..6d271f7516876c 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.cc
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.cc
@@ -785,8 +785,7 @@ void CanvasRenderingContext2D::setDirection(const String& direction_string) {
   GetState().SetDirection(direction);
 }
 
-void CanvasRenderingContext2D::setTextLetterSpacing(
-    const double letter_spacing) {
+void CanvasRenderingContext2D::setLetterSpacing(const double letter_spacing) {
   if (UNLIKELY(!std::isfinite(letter_spacing)))
     return;
 
@@ -794,8 +793,7 @@ void CanvasRenderingContext2D::setTextLetterSpacing(
     setFont(font());
 
   float letter_spacing_float = clampTo<float>(letter_spacing);
-  GetState().SetTextLetterSpacing(letter_spacing_float,
-                                  Host()->GetFontSelector());
+  GetState().SetLetterSpacing(letter_spacing_float, Host()->GetFontSelector());
 }
 
 void CanvasRenderingContext2D::setWordSpacing(const double word_spacing) {
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.h b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.h
index 31c2f688a41016..091a635058a9f9 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.h
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.h
@@ -124,7 +124,7 @@ class MODULES_EXPORT CanvasRenderingContext2D final
   String direction() const;
   void setDirection(const String&);
 
-  void setTextLetterSpacing(const double letter_spacing);
+  void setLetterSpacing(const double letter_spacing);
   void setWordSpacing(const double word_spacing);
   void setTextRendering(const String&);
 
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.idl b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.idl
index 33dbfa98d670d9..2ca0843d1a2215 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.idl
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.idl
@@ -181,7 +181,7 @@ interface CanvasRenderingContext2D {
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString fontKerning; // "auto", "normal", "none" (default: "auto")
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString fontStretch; // "ultra-condensed", "extra-condensed", "condensed", "semi-condensed", "normal", "semi-expanded", "expanded", "extra-expanded", "ultra-expanded" (default: normal)
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString fontVariantCaps; // "normal", "small-caps", "all-small-caps", "petite-caps", "all-petite-caps", "unicase", "titling-caps" (default: "normal")
-    [RuntimeEnabled=NewCanvas2DAPI] attribute unrestricted double textLetterSpacing; // length in pixel (default: 0)
+    [RuntimeEnabled=NewCanvas2DAPI] attribute unrestricted double letterSpacing; // length in pixel (default: 0)
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString textRendering; // "auto", "optimizeSpeed", "optimizeLegibility", "geometricPrecision" (default: auto)
     [RuntimeEnabled=NewCanvas2DAPI] attribute unrestricted double wordSpacing; // length in pixel (default: 0)
 };
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.cc b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.cc
index ee9d0e397ec979..ea14b9c8814c8c 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.cc
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.cc
@@ -739,9 +739,8 @@ bool CanvasRenderingContext2DState::PatternIsAccelerated(
   return Style(paint_type)->GetCanvasPattern()->GetPattern()->IsTextureBacked();
 }
 
-void CanvasRenderingContext2DState::SetTextLetterSpacing(
-    float letter_spacing,
-    FontSelector* selector) {
+void CanvasRenderingContext2DState::SetLetterSpacing(float letter_spacing,
+                                                     FontSelector* selector) {
   DCHECK(realized_font_);
   FontDescription font_description(GetFontDescription());
   font_description.SetLetterSpacing(letter_spacing);
diff --git a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.h b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.h
index b01b2e03fbeb4b..6d2d7c43063c5d 100644
--- a/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.h
+++ b/third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d_state.h
@@ -142,8 +142,8 @@ class CanvasRenderingContext2DState final
   void SetTextBaseline(TextBaseline baseline) { text_baseline_ = baseline; }
   TextBaseline GetTextBaseline() const { return text_baseline_; }
 
-  void SetTextLetterSpacing(float letter_space, FontSelector* selector);
-  float GetTextLetterSpacing() const { return letter_spacing_; }
+  void SetLetterSpacing(float letter_space, FontSelector* selector);
+  float GetLetterSpacing() const { return letter_spacing_; }
 
   void SetWordSpacing(float word_space, FontSelector* selector);
   float GetWordSpacing() const { return word_spacing_; }
diff --git a/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.cc b/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.cc
index 223a4e2e626cf5..422a52b7ed8dfb 100644
--- a/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.cc
+++ b/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.cc
@@ -473,7 +473,7 @@ String OffscreenCanvasRenderingContext2D::direction() const {
              ? kRtlDirectionString
              : kLtrDirectionString;
 }
-void OffscreenCanvasRenderingContext2D::setTextLetterSpacing(
+void OffscreenCanvasRenderingContext2D::setLetterSpacing(
     const double letter_spacing) {
   if (UNLIKELY(!std::isfinite(letter_spacing)))
     return;
@@ -482,8 +482,7 @@ void OffscreenCanvasRenderingContext2D::setTextLetterSpacing(
     setFont(font());
 
   float letter_spacing_float = clampTo<float>(letter_spacing);
-  GetState().SetTextLetterSpacing(letter_spacing_float,
-                                  Host()->GetFontSelector());
+  GetState().SetLetterSpacing(letter_spacing_float, Host()->GetFontSelector());
 }
 
 void OffscreenCanvasRenderingContext2D::setWordSpacing(
diff --git a/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.h b/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.h
index 3b908ec901fed8..5ebc6778b8e8b7 100644
--- a/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.h
+++ b/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.h
@@ -84,7 +84,7 @@ class MODULES_EXPORT OffscreenCanvasRenderingContext2D final
   String direction() const;
   void setDirection(const String&);
 
-  void setTextLetterSpacing(const double letter_spacing);
+  void setLetterSpacing(const double letter_spacing);
   void setWordSpacing(const double word_spacing);
   void setTextRendering(const String&);
   void setFontKerning(const String&);
diff --git a/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.idl b/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.idl
index cc98f39d313dc9..bd4ae87648de2b 100644
--- a/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.idl
+++ b/third_party/blink/renderer/modules/canvas/offscreencanvas2d/offscreen_canvas_rendering_context_2d.idl
@@ -122,7 +122,7 @@
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString fontKerning; // "auto", "normal", "none" (default: "auto")
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString fontStretch; // "ultra-condensed", "extra-condensed", "condensed", "semi-condensed", "normal", "semi-expanded", "expanded", "extra-expanded", "ultra-expanded" (default: normal)
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString fontVariantCaps; // "normal", "small-caps", "all-small-caps", "petite-caps", "all-petite-caps", "unicase", "titling-caps" (default: "normal")
-    [RuntimeEnabled=NewCanvas2DAPI] attribute unrestricted double textLetterSpacing; // length in pixel (default: 0)
+    [RuntimeEnabled=NewCanvas2DAPI] attribute unrestricted double letterSpacing; // length in pixel (default: 0)
     [RuntimeEnabled=NewCanvas2DAPI] attribute DOMString textRendering; // "auto", "optimizeSpeed", "optimizeLegibility", "geometricPrecision" (default: auto)
     [RuntimeEnabled=NewCanvas2DAPI] attribute unrestricted double wordSpacing; // length in pixel (default: 0)
 };
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.nonfinite.spacing.html b/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.nonfinite.spacing.html
index be085ebfa8f4b8..f3929607faa3f2 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.nonfinite.spacing.html
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.nonfinite.spacing.html
@@ -19,14 +19,14 @@ <h1>2d.text.drawing.style.nonfinite.spacing</h1>
 var t = async_test("Testing letter spacing and word spacing with nonfinite inputs");
 _addTest(function(canvas, ctx) {
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
 function test_word_spacing(value) {
   ctx.wordSpacing = value;
-  ctx.textLetterSpacing = value;
+  ctx.letterSpacing = value;
   _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
-  _assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+  _assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 }
 test_word_spacing(NaN);
 test_word_spacing(Infinity);
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.html b/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.html
index b65971280bb120..200d711b4421c6 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.html
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.html
@@ -19,20 +19,20 @@ <h1>2d.text.drawing.style.spacing</h1>
 var t = async_test("Testing letter spacing and word spacing");
 _addTest(function(canvas, ctx) {
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
-ctx.textLetterSpacing = 3;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+ctx.letterSpacing = 3;
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
 ctx.wordSpacing = 5;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 5, "ctx.wordSpacing", "5");
 
-ctx.textLetterSpacing = -1;
+ctx.letterSpacing = -1;
 ctx.wordSpacing = -1;
-_assertSame(ctx.textLetterSpacing, -1, "ctx.textLetterSpacing", "-1");
+_assertSame(ctx.letterSpacing, -1, "ctx.letterSpacing", "-1");
 _assertSame(ctx.wordSpacing, -1, "ctx.wordSpacing", "-1");
 
 
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.measure.html b/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.measure.html
index b4b4c66fd8a15f..315f284777aae5 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.measure.html
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/element/drawing-text-to-the-canvas/2d.text.drawing.style.spacing.measure.html
@@ -19,28 +19,28 @@ <h1>2d.text.drawing.style.spacing.measure</h1>
 var t = async_test("Testing letter spacing and word spacing");
 _addTest(function(canvas, ctx) {
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 var width_normal = ctx.measureText('Hello World').width;
 
-ctx.textLetterSpacing = 3;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+ctx.letterSpacing = 3;
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 var width_with_spacing = ctx.measureText('Hello World').width;
 // Add letter spacing after each letter, so 11 * 3 = 33px longer.
 _assertSame(width_with_spacing, width_normal + 33, "width_with_spacing", "width_normal + 33");
 
 ctx.wordSpacing = 5;
-ctx.textLetterSpacing = 0;
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+ctx.letterSpacing = 0;
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 5, "ctx.wordSpacing", "5");
 // Add Word Spacing between "Hello" and "World", so it's 5px longer.
 width_with_spacing = ctx.measureText('Hello World').width;
 _assertSame(width_with_spacing, width_normal + 5, "width_with_spacing", "width_normal + 5");
 
-ctx.textLetterSpacing = -2;
+ctx.letterSpacing = -2;
 ctx.wordSpacing = -1;
-_assertSame(ctx.textLetterSpacing, -2, "ctx.textLetterSpacing", "-2");
+_assertSame(ctx.letterSpacing, -2, "ctx.letterSpacing", "-2");
 _assertSame(ctx.wordSpacing, -1, "ctx.wordSpacing", "-1");
 // Add Word Spacing and letter spacing, so it's -11*2 = -22px from
 // letter spacing and -1px from word spacing.
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.html b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.html
index cc2d2d5580b40c..688eee2a0259eb 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.html
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.html
@@ -20,14 +20,14 @@ <h1>2d.text.drawing.style.nonfinite.spacing</h1>
 var offscreenCanvas = new OffscreenCanvas(100, 50);
 var ctx = offscreenCanvas.getContext('2d');
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
 function test_word_spacing(value) {
   ctx.wordSpacing = value;
-  ctx.textLetterSpacing = value;
+  ctx.letterSpacing = value;
   _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
-  _assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+  _assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 }
 test_word_spacing(NaN);
 test_word_spacing(Infinity);
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.worker.js b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.worker.js
index 101378bece9f64..ecf9224e9e2ea7 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.worker.js
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.nonfinite.spacing.worker.js
@@ -16,14 +16,14 @@ t.step(function() {
 var offscreenCanvas = new OffscreenCanvas(100, 50);
 var ctx = offscreenCanvas.getContext('2d');
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
 function test_word_spacing(value) {
   ctx.wordSpacing = value;
-  ctx.textLetterSpacing = value;
+  ctx.letterSpacing = value;
   _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
-  _assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+  _assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 }
 test_word_spacing(NaN);
 test_word_spacing(Infinity);
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.html b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.html
index d1db23fdfe283c..bc688b7ee24b1e 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.html
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.html
@@ -20,20 +20,20 @@ <h1>2d.text.drawing.style.spacing</h1>
 var offscreenCanvas = new OffscreenCanvas(100, 50);
 var ctx = offscreenCanvas.getContext('2d');
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
-ctx.textLetterSpacing = 3;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+ctx.letterSpacing = 3;
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
 ctx.wordSpacing = 5;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 5, "ctx.wordSpacing", "5");
 
-ctx.textLetterSpacing = -1;
+ctx.letterSpacing = -1;
 ctx.wordSpacing = -1;
-_assertSame(ctx.textLetterSpacing, -1, "ctx.textLetterSpacing", "-1");
+_assertSame(ctx.letterSpacing, -1, "ctx.letterSpacing", "-1");
 _assertSame(ctx.wordSpacing, -1, "ctx.wordSpacing", "-1");
 t.done();
 
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.html b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.html
index 91f446b737efd1..5aac96856eda51 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.html
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.html
@@ -20,28 +20,28 @@ <h1>2d.text.drawing.style.spacing.measure</h1>
 var offscreenCanvas = new OffscreenCanvas(100, 50);
 var ctx = offscreenCanvas.getContext('2d');
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 var width_normal = ctx.measureText('Hello World').width;
 
-ctx.textLetterSpacing = 3;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+ctx.letterSpacing = 3;
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 var width_with_spacing = ctx.measureText('Hello World').width;
 // Add letter spacing after each letter, so 11 * 3 = 33px longer.
 _assertSame(width_with_spacing, width_normal + 33, "width_with_spacing", "width_normal + 33");
 
 ctx.wordSpacing = 5;
-ctx.textLetterSpacing = 0;
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+ctx.letterSpacing = 0;
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 5, "ctx.wordSpacing", "5");
 // Add Word Spacing between "Hello" and "World", so it's 5px longer.
 width_with_spacing = ctx.measureText('Hello World').width;
 _assertSame(width_with_spacing, width_normal + 5, "width_with_spacing", "width_normal + 5");
 
-ctx.textLetterSpacing = -2;
+ctx.letterSpacing = -2;
 ctx.wordSpacing = -1;
-_assertSame(ctx.textLetterSpacing, -2, "ctx.textLetterSpacing", "-2");
+_assertSame(ctx.letterSpacing, -2, "ctx.letterSpacing", "-2");
 _assertSame(ctx.wordSpacing, -1, "ctx.wordSpacing", "-1");
 // Add Word Spacing and letter spacing, so it's -11*2 = -22px from
 // letter spacing and -1px from word spacing.
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.worker.js b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.worker.js
index a514bbdfe3f753..df8343951483ab 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.worker.js
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.measure.worker.js
@@ -16,28 +16,28 @@ t.step(function() {
 var offscreenCanvas = new OffscreenCanvas(100, 50);
 var ctx = offscreenCanvas.getContext('2d');
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 var width_normal = ctx.measureText('Hello World').width;
 
-ctx.textLetterSpacing = 3;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+ctx.letterSpacing = 3;
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 var width_with_spacing = ctx.measureText('Hello World').width;
 // Add letter spacing after each letter, so 11 * 3 = 33px longer.
 _assertSame(width_with_spacing, width_normal + 33, "width_with_spacing", "width_normal + 33");
 
 ctx.wordSpacing = 5;
-ctx.textLetterSpacing = 0;
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+ctx.letterSpacing = 0;
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 5, "ctx.wordSpacing", "5");
 // Add Word Spacing between "Hello" and "World", so it's 5px longer.
 width_with_spacing = ctx.measureText('Hello World').width;
 _assertSame(width_with_spacing, width_normal + 5, "width_with_spacing", "width_normal + 5");
 
-ctx.textLetterSpacing = -2;
+ctx.letterSpacing = -2;
 ctx.wordSpacing = -1;
-_assertSame(ctx.textLetterSpacing, -2, "ctx.textLetterSpacing", "-2");
+_assertSame(ctx.letterSpacing, -2, "ctx.letterSpacing", "-2");
 _assertSame(ctx.wordSpacing, -1, "ctx.wordSpacing", "-1");
 // Add Word Spacing and letter spacing, so it's -11*2 = -22px from
 // letter spacing and -1px from word spacing.
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.worker.js b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.worker.js
index e6855c1838e6f7..7904f3f97d74ee 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.worker.js
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/2d.text.drawing.style.spacing.worker.js
@@ -16,20 +16,20 @@ t.step(function() {
 var offscreenCanvas = new OffscreenCanvas(100, 50);
 var ctx = offscreenCanvas.getContext('2d');
 
-_assertSame(ctx.textLetterSpacing, 0, "ctx.textLetterSpacing", "0");
+_assertSame(ctx.letterSpacing, 0, "ctx.letterSpacing", "0");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
-ctx.textLetterSpacing = 3;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+ctx.letterSpacing = 3;
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 0, "ctx.wordSpacing", "0");
 
 ctx.wordSpacing = 5;
-_assertSame(ctx.textLetterSpacing, 3, "ctx.textLetterSpacing", "3");
+_assertSame(ctx.letterSpacing, 3, "ctx.letterSpacing", "3");
 _assertSame(ctx.wordSpacing, 5, "ctx.wordSpacing", "5");
 
-ctx.textLetterSpacing = -1;
+ctx.letterSpacing = -1;
 ctx.wordSpacing = -1;
-_assertSame(ctx.textLetterSpacing, -1, "ctx.textLetterSpacing", "-1");
+_assertSame(ctx.letterSpacing, -1, "ctx.letterSpacing", "-1");
 _assertSame(ctx.wordSpacing, -1, "ctx.wordSpacing", "-1");
 t.done();
 
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/element/drawing-text-to-the-canvas.yaml b/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/element/drawing-text-to-the-canvas.yaml
index 6d871592fa910a..5d472506b1ecd6 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/element/drawing-text-to-the-canvas.yaml
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/element/drawing-text-to-the-canvas.yaml
@@ -743,20 +743,20 @@
   testing:
   - 2d.text.drawing.style.spacing
   code: |
-    @assert ctx.textLetterSpacing === 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 0;
 
-    ctx.textLetterSpacing = 3;
-    @assert ctx.textLetterSpacing === 3;
+    ctx.letterSpacing = 3;
+    @assert ctx.letterSpacing === 3;
     @assert ctx.wordSpacing === 0;
 
     ctx.wordSpacing = 5;
-    @assert ctx.textLetterSpacing === 3;
+    @assert ctx.letterSpacing === 3;
     @assert ctx.wordSpacing === 5;
 
-    ctx.textLetterSpacing = -1;
+    ctx.letterSpacing = -1;
     ctx.wordSpacing = -1;
-    @assert ctx.textLetterSpacing === -1;
+    @assert ctx.letterSpacing === -1;
     @assert ctx.wordSpacing === -1;
 
 - name: 2d.text.drawing.style.nonfinite.spacing
@@ -764,14 +764,14 @@
   testing:
   - 2d.text.drawing.style.spacing
   code: |
-    @assert ctx.textLetterSpacing === 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 0;
 
     function test_word_spacing(value) {
       ctx.wordSpacing = value;
-      ctx.textLetterSpacing = value;
+      ctx.letterSpacing = value;
       @assert ctx.wordSpacing === 0;
-      @assert ctx.textLetterSpacing === 0;
+      @assert ctx.letterSpacing === 0;
     }
     @nonfinite test_word_spacing(<0 NaN Infinity -Infinity>);
 
@@ -780,28 +780,28 @@
   testing:
   - 2d.text.drawing.style.spacing
   code: |
-    @assert ctx.textLetterSpacing === 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 0;
     var width_normal = ctx.measureText('Hello World').width;
 
-    ctx.textLetterSpacing = 3;
-    @assert ctx.textLetterSpacing === 3;
+    ctx.letterSpacing = 3;
+    @assert ctx.letterSpacing === 3;
     @assert ctx.wordSpacing === 0;
     var width_with_spacing = ctx.measureText('Hello World').width;
     // Add letter spacing after each letter, so 11 * 3 = 33px longer.
     @assert width_with_spacing === width_normal + 33;
 
     ctx.wordSpacing = 5;
-    ctx.textLetterSpacing = 0;
-    @assert ctx.textLetterSpacing === 0;
+    ctx.letterSpacing = 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 5;
     // Add Word Spacing between "Hello" and "World", so it's 5px longer.
     width_with_spacing = ctx.measureText('Hello World').width;
     @assert width_with_spacing === width_normal + 5;
 
-    ctx.textLetterSpacing = -2;
+    ctx.letterSpacing = -2;
     ctx.wordSpacing = -1;
-    @assert ctx.textLetterSpacing === -2;
+    @assert ctx.letterSpacing === -2;
     @assert ctx.wordSpacing === -1;
     // Add Word Spacing and letter spacing, so it's -11*2 = -22px from
     // letter spacing and -1px from word spacing.
diff --git a/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/offscreen/text.yaml b/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/offscreen/text.yaml
index df4cc1c307d87c..d034011fbfab71 100644
--- a/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/offscreen/text.yaml
+++ b/third_party/blink/web_tests/external/wpt/html/canvas/tools/yaml/offscreen/text.yaml
@@ -1241,20 +1241,20 @@
   testing:
   - 2d.text.drawing.style.spacing
   code: |
-    @assert ctx.textLetterSpacing === 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 0;
 
-    ctx.textLetterSpacing = 3;
-    @assert ctx.textLetterSpacing === 3;
+    ctx.letterSpacing = 3;
+    @assert ctx.letterSpacing === 3;
     @assert ctx.wordSpacing === 0;
 
     ctx.wordSpacing = 5;
-    @assert ctx.textLetterSpacing === 3;
+    @assert ctx.letterSpacing === 3;
     @assert ctx.wordSpacing === 5;
 
-    ctx.textLetterSpacing = -1;
+    ctx.letterSpacing = -1;
     ctx.wordSpacing = -1;
-    @assert ctx.textLetterSpacing === -1;
+    @assert ctx.letterSpacing === -1;
     @assert ctx.wordSpacing === -1;
     t.done();
 
@@ -1263,14 +1263,14 @@
   testing:
   - 2d.text.drawing.style.spacing
   code: |
-    @assert ctx.textLetterSpacing === 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 0;
 
     function test_word_spacing(value) {
       ctx.wordSpacing = value;
-      ctx.textLetterSpacing = value;
+      ctx.letterSpacing = value;
       @assert ctx.wordSpacing === 0;
-      @assert ctx.textLetterSpacing === 0;
+      @assert ctx.letterSpacing === 0;
     }
     @nonfinite test_word_spacing(<0 NaN Infinity -Infinity>);
 
@@ -1281,28 +1281,28 @@
   testing:
   - 2d.text.drawing.style.spacing
   code: |
-    @assert ctx.textLetterSpacing === 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 0;
     var width_normal = ctx.measureText('Hello World').width;
 
-    ctx.textLetterSpacing = 3;
-    @assert ctx.textLetterSpacing === 3;
+    ctx.letterSpacing = 3;
+    @assert ctx.letterSpacing === 3;
     @assert ctx.wordSpacing === 0;
     var width_with_spacing = ctx.measureText('Hello World').width;
     // Add letter spacing after each letter, so 11 * 3 = 33px longer.
     @assert width_with_spacing === width_normal + 33;
 
     ctx.wordSpacing = 5;
-    ctx.textLetterSpacing = 0;
-    @assert ctx.textLetterSpacing === 0;
+    ctx.letterSpacing = 0;
+    @assert ctx.letterSpacing === 0;
     @assert ctx.wordSpacing === 5;
     // Add Word Spacing between "Hello" and "World", so it's 5px longer.
     width_with_spacing = ctx.measureText('Hello World').width;
     @assert width_with_spacing === width_normal + 5;
 
-    ctx.textLetterSpacing = -2;
+    ctx.letterSpacing = -2;
     ctx.wordSpacing = -1;
-    @assert ctx.textLetterSpacing === -2;
+    @assert ctx.letterSpacing === -2;
     @assert ctx.wordSpacing === -1;
     // Add Word Spacing and letter spacing, so it's -11*2 = -22px from
     // letter spacing and -1px from word spacing.
diff --git a/third_party/blink/web_tests/external/wpt/html/dom/idlharness.https_exclude=(Document_Window_HTML._)-expected.txt b/third_party/blink/web_tests/external/wpt/html/dom/idlharness.https_exclude=(Document_Window_HTML._)-expected.txt
index de79a04477dbd5..7aec7b8cc39c18 100644
--- a/third_party/blink/web_tests/external/wpt/html/dom/idlharness.https_exclude=(Document_Window_HTML._)-expected.txt
+++ b/third_party/blink/web_tests/external/wpt/html/dom/idlharness.https_exclude=(Document_Window_HTML._)-expected.txt
@@ -1,5 +1,5 @@
 This is a testharness.js-based test.
-Found 1445 tests; 1411 PASS, 34 FAIL, 0 TIMEOUT, 0 NOTRUN.
+Found 1445 tests; 1408 PASS, 37 FAIL, 0 TIMEOUT, 0 NOTRUN.
 PASS idl_test setup
 PASS idl_test validation
 PASS Partial interface Document: original interface defined
@@ -495,7 +495,7 @@ PASS CanvasRenderingContext2D interface: attribute font
 PASS CanvasRenderingContext2D interface: attribute textAlign
 PASS CanvasRenderingContext2D interface: attribute textBaseline
 PASS CanvasRenderingContext2D interface: attribute direction
-PASS CanvasRenderingContext2D interface: attribute textLetterSpacing
+FAIL CanvasRenderingContext2D interface: attribute textLetterSpacing assert_true: The prototype object must have a property "textLetterSpacing" expected true got false
 FAIL CanvasRenderingContext2D interface: attribute textWordSpacing assert_true: The prototype object must have a property "textWordSpacing" expected true got false
 PASS CanvasRenderingContext2D interface: attribute fontKerning
 PASS CanvasRenderingContext2D interface: attribute fontStretch
@@ -617,7 +617,7 @@ PASS CanvasRenderingContext2D interface: document.createElement("canvas").getCon
 PASS CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "textAlign" with the proper type
 PASS CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "textBaseline" with the proper type
 PASS CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "direction" with the proper type
-PASS CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "textLetterSpacing" with the proper type
+FAIL CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "textLetterSpacing" with the proper type assert_inherits: property "textLetterSpacing" not found in prototype chain
 FAIL CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "textWordSpacing" with the proper type assert_inherits: property "textWordSpacing" not found in prototype chain
 PASS CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "fontKerning" with the proper type
 PASS CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "fontStretch" with the proper type
@@ -793,7 +793,7 @@ PASS OffscreenCanvasRenderingContext2D interface: attribute font
 PASS OffscreenCanvasRenderingContext2D interface: attribute textAlign
 PASS OffscreenCanvasRenderingContext2D interface: attribute textBaseline
 PASS OffscreenCanvasRenderingContext2D interface: attribute direction
-PASS OffscreenCanvasRenderingContext2D interface: attribute textLetterSpacing
+FAIL OffscreenCanvasRenderingContext2D interface: attribute textLetterSpacing assert_true: The prototype object must have a property "textLetterSpacing" expected true got false
 FAIL OffscreenCanvasRenderingContext2D interface: attribute textWordSpacing assert_true: The prototype object must have a property "textWordSpacing" expected true got false
 PASS OffscreenCanvasRenderingContext2D interface: attribute fontKerning
 PASS OffscreenCanvasRenderingContext2D interface: attribute fontStretch
diff --git a/third_party/blink/web_tests/external/wpt/html/dom/idlharness.worker-expected.txt b/third_party/blink/web_tests/external/wpt/html/dom/idlharness.worker-expected.txt
index 10ce0c3c39da77..caef5119972432 100644
--- a/third_party/blink/web_tests/external/wpt/html/dom/idlharness.worker-expected.txt
+++ b/third_party/blink/web_tests/external/wpt/html/dom/idlharness.worker-expected.txt
@@ -1,5 +1,5 @@
 This is a testharness.js-based test.
-Found 805 tests; 796 PASS, 9 FAIL, 0 TIMEOUT, 0 NOTRUN.
+Found 805 tests; 795 PASS, 10 FAIL, 0 TIMEOUT, 0 NOTRUN.
 PASS idl_test setup
 PASS idl_test validation
 PASS Partial interface Document: original interface defined
@@ -401,7 +401,7 @@ PASS OffscreenCanvasRenderingContext2D interface: attribute font
 PASS OffscreenCanvasRenderingContext2D interface: attribute textAlign
 PASS OffscreenCanvasRenderingContext2D interface: attribute textBaseline
 PASS OffscreenCanvasRenderingContext2D interface: attribute direction
-PASS OffscreenCanvasRenderingContext2D interface: attribute textLetterSpacing
+FAIL OffscreenCanvasRenderingContext2D interface: attribute textLetterSpacing assert_true: The prototype object must have a property "textLetterSpacing" expected true got false
 FAIL OffscreenCanvasRenderingContext2D interface: attribute textWordSpacing assert_true: The prototype object must have a property "textWordSpacing" expected true got false
 PASS OffscreenCanvasRenderingContext2D interface: attribute fontKerning
 PASS OffscreenCanvasRenderingContext2D interface: attribute fontStretch
diff --git a/third_party/blink/web_tests/fast/canvas/canvas-text-drawing-style-letterWordSpacing.html b/third_party/blink/web_tests/fast/canvas/canvas-text-drawing-style-letterWordSpacing.html
index 3af3ef66122c99..c58d1c5f1c5e4a 100644
--- a/third_party/blink/web_tests/fast/canvas/canvas-text-drawing-style-letterWordSpacing.html
+++ b/third_party/blink/web_tests/fast/canvas/canvas-text-drawing-style-letterWordSpacing.html
@@ -6,16 +6,16 @@
     var ctx = document.createElement('canvas').getContext('2d');
 
     // Verify initial values:
-    assert_equals(ctx.textLetterSpacing, 0);
+    assert_equals(ctx.letterSpacing, 0);
     assert_equals(ctx.wordSpacing, 0);
 
-    ctx.textLetterSpacing = 3;
-    assert_equals(ctx.textLetterSpacing, 3);
+    ctx.letterSpacing = 3;
+    assert_equals(ctx.letterSpacing, 3);
     assert_equals(ctx.wordSpacing, 0);
     ctx.wordSpacing = 5;
-    assert_equals(ctx.textLetterSpacing, 3);
+    assert_equals(ctx.letterSpacing, 3);
     assert_equals(ctx.wordSpacing, 5);
 
-}, "Test basic functionality of textLetterSpacing and wordSpacing.");
+}, "Test basic functionality of letterSpacing and wordSpacing.");
 </script>
 </body>
diff --git a/third_party/blink/web_tests/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt b/third_party/blink/web_tests/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt
index 234c534d1e2dcc..92be067294929b 100644
--- a/third_party/blink/web_tests/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt
+++ b/third_party/blink/web_tests/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt
@@ -997,6 +997,7 @@ interface OffscreenCanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter letterSpacing
     getter lineCap
     getter lineDashOffset
     getter lineJoin
@@ -1009,7 +1010,6 @@ interface OffscreenCanvasRenderingContext2D
     getter strokeStyle
     getter textAlign
     getter textBaseline
-    getter textLetterSpacing
     getter textRendering
     getter wordSpacing
     method arc
@@ -1073,6 +1073,7 @@ interface OffscreenCanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter letterSpacing
     setter lineCap
     setter lineDashOffset
     setter lineJoin
@@ -1085,7 +1086,6 @@ interface OffscreenCanvasRenderingContext2D
     setter strokeStyle
     setter textAlign
     setter textBaseline
-    setter textLetterSpacing
     setter textRendering
     setter wordSpacing
 interface Path2D
diff --git a/third_party/blink/web_tests/webexposed/global-interface-listing-dedicated-worker-expected.txt b/third_party/blink/web_tests/webexposed/global-interface-listing-dedicated-worker-expected.txt
index 6cd2430f9a69bf..8642e017c20b3f 100644
--- a/third_party/blink/web_tests/webexposed/global-interface-listing-dedicated-worker-expected.txt
+++ b/third_party/blink/web_tests/webexposed/global-interface-listing-dedicated-worker-expected.txt
@@ -1044,6 +1044,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter globalCompositeOperation
 [Worker]     getter imageSmoothingEnabled
 [Worker]     getter imageSmoothingQuality
+[Worker]     getter letterSpacing
 [Worker]     getter lineCap
 [Worker]     getter lineDashOffset
 [Worker]     getter lineJoin
@@ -1056,7 +1057,6 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter strokeStyle
 [Worker]     getter textAlign
 [Worker]     getter textBaseline
-[Worker]     getter textLetterSpacing
 [Worker]     getter textRendering
 [Worker]     getter wordSpacing
 [Worker]     method arc
@@ -1120,6 +1120,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     setter globalCompositeOperation
 [Worker]     setter imageSmoothingEnabled
 [Worker]     setter imageSmoothingQuality
+[Worker]     setter letterSpacing
 [Worker]     setter lineCap
 [Worker]     setter lineDashOffset
 [Worker]     setter lineJoin
@@ -1132,7 +1133,6 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     setter strokeStyle
 [Worker]     setter textAlign
 [Worker]     setter textBaseline
-[Worker]     setter textLetterSpacing
 [Worker]     setter textRendering
 [Worker]     setter wordSpacing
 [Worker] interface Path2D
diff --git a/third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt b/third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt
index 9c10dfb0d407f4..909a8688525798 100644
--- a/third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt
+++ b/third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt
@@ -1095,6 +1095,7 @@ interface CanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter letterSpacing
     getter lineCap
     getter lineDashOffset
     getter lineJoin
@@ -1107,7 +1108,6 @@ interface CanvasRenderingContext2D
     getter strokeStyle
     getter textAlign
     getter textBaseline
-    getter textLetterSpacing
     getter textRendering
     getter wordSpacing
     method addHitRegion
@@ -1177,6 +1177,7 @@ interface CanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter letterSpacing
     setter lineCap
     setter lineDashOffset
     setter lineJoin
@@ -1189,7 +1190,6 @@ interface CanvasRenderingContext2D
     setter strokeStyle
     setter textAlign
     setter textBaseline
-    setter textLetterSpacing
     setter textRendering
     setter wordSpacing
 interface CaptureHandleChangeEvent : Event
@@ -5948,6 +5948,7 @@ interface OffscreenCanvasRenderingContext2D
     getter globalCompositeOperation
     getter imageSmoothingEnabled
     getter imageSmoothingQuality
+    getter letterSpacing
     getter lineCap
     getter lineDashOffset
     getter lineJoin
@@ -5960,7 +5961,6 @@ interface OffscreenCanvasRenderingContext2D
     getter strokeStyle
     getter textAlign
     getter textBaseline
-    getter textLetterSpacing
     getter textRendering
     getter wordSpacing
     method arc
@@ -6024,6 +6024,7 @@ interface OffscreenCanvasRenderingContext2D
     setter globalCompositeOperation
     setter imageSmoothingEnabled
     setter imageSmoothingQuality
+    setter letterSpacing
     setter lineCap
     setter lineDashOffset
     setter lineJoin
@@ -6036,7 +6037,6 @@ interface OffscreenCanvasRenderingContext2D
     setter strokeStyle
     setter textAlign
     setter textBaseline
-    setter textLetterSpacing
     setter textRendering
     setter wordSpacing
 interface Option
diff --git a/third_party/blink/web_tests/webexposed/global-interface-listing-shared-worker-expected.txt b/third_party/blink/web_tests/webexposed/global-interface-listing-shared-worker-expected.txt
index caef66cbdeb995..f9f9671062a3c6 100644
--- a/third_party/blink/web_tests/webexposed/global-interface-listing-shared-worker-expected.txt
+++ b/third_party/blink/web_tests/webexposed/global-interface-listing-shared-worker-expected.txt
@@ -917,6 +917,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter globalCompositeOperation
 [Worker]     getter imageSmoothingEnabled
 [Worker]     getter imageSmoothingQuality
+[Worker]     getter letterSpacing
 [Worker]     getter lineCap
 [Worker]     getter lineDashOffset
 [Worker]     getter lineJoin
@@ -929,7 +930,6 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     getter strokeStyle
 [Worker]     getter textAlign
 [Worker]     getter textBaseline
-[Worker]     getter textLetterSpacing
 [Worker]     getter textRendering
 [Worker]     getter wordSpacing
 [Worker]     method arc
@@ -993,6 +993,7 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     setter globalCompositeOperation
 [Worker]     setter imageSmoothingEnabled
 [Worker]     setter imageSmoothingQuality
+[Worker]     setter letterSpacing
 [Worker]     setter lineCap
 [Worker]     setter lineDashOffset
 [Worker]     setter lineJoin
@@ -1005,7 +1006,6 @@ Starting worker: resources/global-interface-listing-worker.js
 [Worker]     setter strokeStyle
 [Worker]     setter textAlign
 [Worker]     setter textBaseline
-[Worker]     setter textLetterSpacing
 [Worker]     setter textRendering
 [Worker]     setter wordSpacing
 [Worker] interface Path2D