Roll WebGL 0d55c88..5b6cbd7

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/0d55c88..5b6cbd7

Include suppressions for the following failures:

  conformance2/textures/misc/copy-texture-image.html
On Mac Intel:
  deqp/functional/gles3/framebufferblit/rect_03.html
  deqp/functional/gles3/framebufferblit/rect_04.html

Bug: 905531, 830046, 658724
Cq-Include-Trybots: luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_angle_rel_ng;luci.chromium.try:win_angle_rel_ng
Change-Id: I61d36e9ffab9461ee81cce80f320ab9df095f408
Reviewed-on: https://chromium-review.googlesource.com/c/1335270
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608663}

DEPS

@@ -1163,7 +1163,7 @@ deps = {
     Var('chromium_git') + '/external/selenium/py.git' + '@' + '5fd78261a75fe08d27ca4835fb6c5ce4b42275bd',
 
   'src/third_party/webgl/src':
-    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '0d55c887e92b645f6effe753528323ab2ffd94c2',
+    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '5b6cbd789b9b91b4e46dde883c9f2ecb31eddade',
 
   'src/third_party/webrtc':
     Var('webrtc_git') + '/src.git' + '@' + '302134240b5ded9a00c67db177d4bd3023ceb3ff',

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -56,6 +56,9 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         'conformance2/glsl3/const-struct-from-array-as-function-parameter.html',
         ['win', 'nvidia', 'opengl'], bug=874620)
 
+    # Failing test updated in https://github.com/KhronosGroup/WebGL/pull/2226
+    self.Fail('conformance2/textures/misc/copy-texture-image.html', bug=905531)
+
     # Failing new test added in https://github.com/KhronosGroup/WebGL/pull/2665
     self.Fail('conformance2/textures/misc/tex-subimage3d-canvas-bug.html',
               ['linux'], bug=859400)
@@ -788,6 +791,10 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         ['mac', 'intel'], bug=606074)
     self.Fail('deqp/functional/gles3/texturefiltering/3d_combinations_08.html',
         ['mac', 'intel'], bug=606074)
+    self.Fail('deqp/functional/gles3/framebufferblit/rect_03.html',
+        ['mac', 'intel'], bug=658724)
+    self.Fail('deqp/functional/gles3/framebufferblit/rect_04.html',
+        ['mac', 'intel'], bug=658724)
 
     self.Fail('deqp/functional/gles3/texturespecification/' +
         'random_teximage2d_2d.html',

content/test/gpu/gpu_tests/webgl_conformance_revision.txt

 # AUTOGENERATED FILE - DO NOT EDIT
 # SEE roll_webgl_conformance.py
-Current webgl revision 0d55c887e92b645f6effe753528323ab2ffd94c2
+Current webgl revision 5b6cbd789b9b91b4e46dde883c9f2ecb31eddade