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diff --git a/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-3d-with-canvas.js b/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-3d-with-canvas.js
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index 000000000..c577d0f44
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+++ b/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-3d-with-canvas.js
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+/*
+** Copyright (c) 2015 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
+    var wtu = WebGLTestUtils;
+    var tiu = TexImageUtils;
+    var gl = null;
+    var successfullyParsed = false;
+    var whiteColor = [255, 255, 255, 255];
+    var redColor = [255, 0, 0];
+    var greenColor = [0, 255, 0];
+
+    function init()
+    {
+        description('Verify texImage3D and texSubImage3D code paths taking canvas elements (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')');
+
+        // Set the default context version while still allowing the webglVersion URL query string to override it.
+        wtu.setDefault3DContextVersion(defaultContextVersion);
+        gl = wtu.create3DContext("example");
+
+        if (!prologue(gl)) {
+            finishTest();
+            return;
+        }
+
+        switch (gl[pixelFormat]) {
+          case gl.RED:
+          case gl.RED_INTEGER:
+            whiteColor = [255, 0, 0, 255];
+            greenColor = [0, 0, 0];
+            break;
+          case gl.RG:
+          case gl.RG_INTEGER:
+            whiteColor = [255, 255, 0, 255];
+            break;
+          default:
+            break;
+        }
+
+        gl.clearColor(0,0,0,1);
+        gl.clearDepth(1);
+
+        var testCanvas = document.createElement('canvas');
+        runTest(testCanvas);
+        //document.body.appendChild(testCanvas);
+    }
+
+    function setCanvasToRedGreen(ctx) {
+      var width = ctx.canvas.width;
+      var height = ctx.canvas.height;
+      var halfHeight = Math.floor(height / 2);
+      ctx.fillStyle = "#ff0000";
+      ctx.fillRect(0, 0, width, halfHeight);
+      ctx.fillStyle = "#00ff00";
+      ctx.fillRect(0, halfHeight, width, height - halfHeight);
+    }
+
+    function drawTextInCanvas(ctx, bindingTarget) {
+      var width = ctx.canvas.width;
+      var height = ctx.canvas.height;
+      ctx.fillStyle = "#ffffff";
+      ctx.fillRect(0, 0, width, height);
+      ctx.font = '20pt Arial';
+      ctx.fillStyle = 'black';
+      ctx.textAlign = "center";
+      ctx.textBaseline = "middle";
+      ctx.fillText("1234567890", width / 2, height / 4);
+    }
+
+    function setCanvasTo257x257(ctx, bindingTarget) {
+      ctx.canvas.width = 257;
+      ctx.canvas.height = 257;
+      setCanvasToRedGreen(ctx);
+    }
+
+    function setCanvasToMin(ctx, bindingTarget) {
+      if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
+        // cube map texture must be square.
+        ctx.canvas.width = 2;
+      } else {
+        ctx.canvas.width = 1;
+      }
+      ctx.canvas.height = 2;
+      setCanvasToRedGreen(ctx);
+    }
+
+    function runOneIteration(canvas, flipY, program, bindingTarget, opt_texture, opt_fontTest)
+    {
+        debug('Testing ' + ' with flipY=' + flipY + ' bindingTarget=' + (bindingTarget == gl.TEXTURE_3D ? 'TEXTURE_3D' : 'TEXTURE_2D_ARRAY') +
+              ' canvas size: ' + canvas.width + 'x' + canvas.height + (opt_fontTest ? " with fonts" : " with red-green"));
+        gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+        if (!opt_texture) {
+            var texture = gl.createTexture();
+            // Bind the texture to texture unit 0
+            gl.bindTexture(bindingTarget, texture);
+            // Set up texture parameters
+            gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+            gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+            gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE);
+            gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+            gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+        } else {
+            var texture = opt_texture;
+        }
+        // Set up pixel store parameters
+        gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
+        gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
+        wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);');
+        // Initialize the texture to black first
+        gl.texImage3D(bindingTarget, 0, gl[internalFormat], canvas.width, canvas.height, 1 /* depth */, 0,
+                      gl[pixelFormat], gl[pixelType], null);
+        gl.texSubImage3D(bindingTarget, 0, 0, 0, 0, canvas.width, canvas.height, 1 /* depth */,
+                         gl[pixelFormat], gl[pixelType], canvas);
+
+        var width = gl.canvas.width;
+        var height = gl.canvas.height;
+        var halfHeight = Math.floor(height / 2);
+        var top = flipY ? 0 : (height - halfHeight);
+        var bottom = flipY ? (height - halfHeight) : 0;
+
+        // Draw the triangles
+        wtu.clearAndDrawUnitQuad(gl, [0, 255, 0, 255]);
+
+        if (opt_fontTest) {
+            // check half is a solid color.
+            wtu.checkCanvasRect(
+                  gl, 0, top, width, halfHeight,
+                  whiteColor,
+                  "should be white");
+            // check other half is not a solid color.
+            wtu.checkCanvasRectColor(
+                  gl, 0, bottom, width, halfHeight,
+                  whiteColor, 0,
+                  function() {
+                    testFailed("font missing");
+                  },
+                  function() {
+                    testPassed("font renderered");
+                  },
+                  debug);
+        } else {
+            // Check the top and bottom halves and make sure they have the right color.
+            debug("Checking " + (flipY ? "top" : "bottom"));
+            wtu.checkCanvasRect(gl, 0, bottom, width, halfHeight, redColor,
+                                "shouldBe " + redColor);
+            debug("Checking " + (flipY ? "bottom" : "top"));
+            wtu.checkCanvasRect(gl, 0, top, width, halfHeight, greenColor,
+                                "shouldBe " + greenColor);
+        }
+
+        return texture;
+    }
+
+    function runTest(canvas)
+    {
+        var ctx = canvas.getContext("2d");
+
+        var cases = [
+            { flipY: true,  font: false, init: setCanvasToMin },
+            { flipY: false, font: false },
+            { flipY: true,  font: false, init: setCanvasTo257x257 },
+            { flipY: false, font: false },
+            { flipY: true,  font: true, init: drawTextInCanvas },
+            { flipY: false, font: true },
+        ];
+
+        function runTexImageTest(bindingTarget) {
+            var program;
+            if (bindingTarget == gl.TEXTURE_3D) {
+                program = tiu.setupTexturedQuadWith3D(gl, internalFormat);
+            } else {  // TEXTURE_2D_ARRAY
+                program = tiu.setupTexturedQuadWith2DArray(gl, internalFormat);
+            }
+
+            return new Promise(function(resolve, reject) {
+                var count = 4;
+                var caseNdx = 0;
+                var texture = undefined;
+                function runNextTest() {
+                    var c = cases[caseNdx];
+                    if (c.init) {
+                      c.init(ctx, bindingTarget);
+                    }
+                    texture = runOneIteration(canvas, c.flipY, program, bindingTarget, texture, c.font);
+                    // for the first 2 iterations always make a new texture.
+                    if (count > 2) {
+                      texture = undefined;
+                    }
+                    ++caseNdx;
+                    if (caseNdx == cases.length) {
+                        caseNdx = 0;
+                        --count;
+                        if (!count) {
+                            resolve("SUCCESS");
+                            return;
+                        }
+                    }
+                    wtu.waitForComposite(runNextTest);
+                }
+                runNextTest();
+            });
+        }
+
+        runTexImageTest(gl.TEXTURE_3D).then(function(val) {
+            runTexImageTest(gl.TEXTURE_2D_ARRAY).then(function(val) {
+                wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+                finishTest();
+            });
+        });
+    }
+
+    return init;
+}