Option to run tests with WebGL validation

Specs/createContext.js

@@ -2,28 +2,58 @@
 define([
         'Core/clone',
         'Core/defaultValue',
+        'Core/defined',
         'Renderer/Context',
         'Specs/createCanvas',
         'Specs/createFrameState'
     ], function(
         clone,
         defaultValue,
+        defined,
         Context,
         createCanvas,
         createFrameState) {
     "use strict";
 
+    function getQueryParameters() {
+        var queryParameters = {};
+
+        var search = window.location.search;
+        if (search.length > 1) {
+            search = search.substr(1);
+            var parameters = search.split('&');
+            for (var i = 0; i < parameters.length; ++i) {
+                if (parameters[i].length > 0) {
+                    var index = parameters[i].indexOf('=');
+                    if (index !== -1) {
+                        var key = parameters[i].substr(0, index);
+                        var value = unescape(parameters[i].substr(index + 1));
+                        queryParameters[key] = value;
+                    } else {
+                        queryParameters[parameters[i]] = '';
+                    }
+                }
+            }
+        }
+
+        return queryParameters;
+    }
+
     function createContext(options) {
         // clone options so we can change properties
         options = clone(defaultValue(options, {}));
         options.alpha = defaultValue(options.alpha, true);
 
         var canvas = createCanvas();
         var context = new Context(canvas, options);
-        context.setValidateShaderProgram(true);
-        context.setValidateFramebuffer(true);
-        context.setLogShaderCompilation(true);
-        context.setThrowOnWebGLError(true);
+
+        var parameters = getQueryParameters();
+        if (!defined(parameters.skipWebGLValidation)) {
+            context.setValidateShaderProgram(true);
+            context.setValidateFramebuffer(true);
+            context.setLogShaderCompilation(true);
+            context.setThrowOnWebGLError(true);
+        }
 
         var us = context.getUniformState();
         us.update(createFrameState());

index.html

@@ -39,7 +39,7 @@
         Tests
         <ul>
             <li>
-                <a href="Specs/SpecRunner.html">Run all tests</a>
+                <a href="Specs/SpecRunner.html">Run all tests</a> &bullet; <a href="Specs/SpecRunner.html?skipWebGLValidation">Run all without WebGL validation</a> (faster)
             </li>
             <li>
                 <a href="Specs/SpecRunner.html?category=none">Select a test to run</a>