Roll WebGL 4951bdd..c403207

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/4951bdd..c403207

BUG=
TEST=bots
TBR=kbr@chromium.org
NOTRY=true
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2153383002
Cr-Commit-Position: refs/heads/master@{#405959}

DEPS

@@ -178,7 +178,7 @@ deps = {
     Var('chromium_git') + '/external/bidichecker/lib.git' + '@' + '97f2aa645b74c28c57eca56992235c79850fa9e0',
 
   'src/third_party/webgl/src':
-   Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '4951bdd3e7aed161dfd4016240b1071ccaaa55c5',
+   Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'c403207c1d0a27365bc0ccebc423a9796ccd6204',
 
   'src/third_party/webdriver/pylib':
     Var('chromium_git') + '/external/selenium/py.git' + '@' + '5fd78261a75fe08d27ca4835fb6c5ce4b42275bd',

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -39,17 +39,6 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
 
     # All platforms.
 
-    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
-              'tex-2d-rgba-rgba-unsigned_byte.html', bug=483282)
-    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
-              'tex-2d-rgba-rgba-unsigned_short_4_4_4_4.html', bug=483282)
-    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
-              'tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html', bug=483282)
-    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
-              'tex-2d-rgb-rgb-unsigned_byte.html', bug=483282)
-    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
-              'tex-2d-rgb-rgb-unsigned_short_5_6_5.html', bug=483282)
-
     self.Fail('deqp/data/gles3/shaders/linkage.html', bug=601821)
 
     # Mark this test Flaky on all platforms but Intel Linux that is failing
@@ -72,6 +61,26 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('deqp/functional/gles3/multisample.html',
         ['amd'], bug=617290)
 
+    self.Fail('conformance2/rendering/framebuffer-unsupported.html',
+        bug=628861)
+
+    # Linux passes because 2D canvas is not GPU accelerated.
+    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
+        'tex-2d-rgba-rgba-unsigned_byte.html',
+        ['win', 'mac'], bug=628954)
+    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
+        'tex-2d-rgba-rgba-unsigned_short_4_4_4_4.html',
+        ['win', 'mac'], bug=628954)
+    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
+        'tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html',
+        ['win', 'mac'], bug=628954)
+    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
+        'tex-2d-rgb-rgb-unsigned_byte.html',
+        ['win', 'mac'], bug=628954)
+    self.Fail('conformance/textures/image_bitmap_from_canvas/' +
+        'tex-2d-rgb-rgb-unsigned_short_5_6_5.html',
+        ['win', 'mac'], bug=628954)
+
     # Windows only.
     self.Fail('conformance/glsl/bugs/' +
               'pow-of-small-constant-in-user-defined-function.html',
@@ -544,9 +553,6 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance2/glsl3/vector-dynamic-indexing.html',
         ['linux'], bug=483282)
 
-    self.Fail('deqp/functional/gles3/fbodepthbuffer.html',
-        ['linux'], bug=483282)
-
     self.Fail('deqp/functional/gles3/texturespecification/' +
         'random_teximage2d_cube.html',
         ['linux'], bug=483282)