Roll WebGL da5abe6..aef0b3a

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/da5abe6..aef0b3a

Bug: 806557, 829541, 830046
Change-Id: I2c1b6f58e8005094f3174b7c9a228a67ee2d379b
Cq-Include-Trybots: master.tryserver.chromium.win: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;master.tryserver.chromium.angle:win_angle_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/996896
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#549265}

DEPS

@@ -873,7 +873,7 @@ deps = {
     Var('chromium_git') + '/external/selenium/py.git' + '@' + '5fd78261a75fe08d27ca4835fb6c5ce4b42275bd',
 
   'src/third_party/webgl/src':
-    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'da5abe6e9bae583e4ae73aa553547fcaa637d099',
+    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'aef0b3a79983db6f553f35f6ccd7b9303a72d2fa',
 
   'src/third_party/webrtc':
     Var('webrtc_git') + '/src.git' + '@' + '4da18e89bdee78df4478b66cdd0e6f6a38d61b4d', # commit position 21742

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -63,6 +63,9 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance2/glsl3/tricky-loop-conditions.html', bug=483282)
     self.Fail('conformance2/glsl3/array-length-side-effects.html',
         bug=2142) # angle bug ID
+    self.Fail('conformance2/attribs/' +
+        'gl-bindAttribLocation-aliasing-inactive.html',
+        bug=829541)
 
     # This test needs to be rewritten to measure its expected
     # performance; it's currently too flaky even on release bots.
@@ -257,6 +260,8 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         ['win', 'nvidia', 'opengl'], bug=2355) # ANGLE bug ID
     self.Fail('conformance2/rendering/clipping-wide-points.html',
         ['win', 'nvidia', 'opengl'], bug=828572)
+    self.Skip('conformance2/rendering/blitframebuffer-size-overflow.html',
+        ['win', 'nvidia', 'opengl'], bug=830046)
 
     self.Flaky('deqp/functional/gles3/transformfeedback/*',
         ['win', ('nvidia', 0x1cb3), 'opengl'], bug=822733)

content/test/gpu/gpu_tests/webgl_conformance_revision.txt

 # AUTOGENERATED FILE - DO NOT EDIT
 # SEE roll_webgl_conformance.py
-Current webgl revision da5abe6e9bae583e4ae73aa553547fcaa637d099
+Current webgl revision aef0b3a79983db6f553f35f6ccd7b9303a72d2fa