Roll WebGL 05591bb..1a8ed15

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/05591bb..1a8ed15

BUG=794335,794339,794340,794341,794613
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;master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.angle:linux_angle_rel_ng;master.tryserver.chromium.angle:win_angle_rel_ng

Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I3d5567031523d5c1a8558b967d40835b9c1da77b
Reviewed-on: https://chromium-review.googlesource.com/822914
Commit-Queue: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#523819}

DEPS

@@ -636,7 +636,7 @@ deps = {
     Var('chromium_git') + '/external/selenium/py.git' + '@' + '5fd78261a75fe08d27ca4835fb6c5ce4b42275bd',
 
   'src/third_party/webgl/src':
-    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '05591bbeae6592fd924caec8e728a4ea86cbb8c9',
+    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '1a8ed15c9c25f2b1ccd97149c94ea245ab982252',
 
   'src/third_party/webrtc':
     Var('webrtc_git') + '/src.git' + '@' + '1aa285974b6b2c5d1afe44b3eafe08f4b80837ed', # commit position 20628

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -81,6 +81,12 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     # Need to implement new lifetime/deletion semantics.
     self.Fail('conformance2/vertex_arrays/vertex-array-object.html', bug=739604)
 
+    # The following actually passes on gl_passthrough and also Mac Intel with
+    # command buffer.
+    self.Fail('deqp/functional/gles3/shadertexturefunction/' +
+        'texturelodoffset.html',
+        bug=794335)
+
     # Windows only.
     self.Fail('conformance2/buffers/uniform-buffers.html',
         ['win'], bug=757098)
@@ -177,6 +183,8 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         ['win', 'nvidia', 'opengl'], bug=786716)
     self.Fail('conformance2/rendering/instanced-rendering-bug.html',
         ['win', 'nvidia', 'opengl'], bug=791289)
+    self.Fail('conformance2/rendering/canvas-resizing-with-pbo-bound.html',
+        ['win', 'nvidia', 'opengl'], bug=794613)
 
     # Win / AMD
     self.Fail('conformance2/rendering/blitframebuffer-stencil-only.html',
@@ -315,6 +323,11 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance/renderbuffers/framebuffer-state-restoration.html',
         ['passthrough', 'opengl', 'intel'], bug=602688)
 
+    # Passthrough command decoder / Win / OpenGL / NVIDIA
+    self.Fail('conformance2/textures/canvas_sub_rectangle/' +
+        'tex-2d-rg32f-rg-float.html',
+        ['win', 'passthrough', 'opengl', 'nvidia'], bug=794340)
+
     # Passthrough command decoder / Linux / OpenGL / NVIDIA
     self.Fail('conformance/textures/image_bitmap_from_video/' +
         'tex-2d-luminance_alpha-luminance_alpha-unsigned_byte.html',
@@ -330,6 +343,8 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         ['linux', 'passthrough', 'opengl', 'nvidia'], bug=766918)
     self.Fail('deqp/functional/gles3/shaderoperator/common_functions.html',
         ['linux', 'passthrough', 'opengl', 'nvidia'], bug=793055)
+    self.Fail('deqp/functional/gles3/shaderpackingfunction.html',
+        ['linux', 'passthrough', 'opengl', 'nvidia'], bug=794341)
 
     # Regressions in 10.12.4.
     self.Fail('conformance2/textures/misc/tex-base-level-bug.html',

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

@@ -220,6 +220,11 @@ class WebGLConformanceExpectations(GpuTestExpectations):
     self.Flaky('conformance/programs/program-test.html',
         ['win', 'nvidia', 'passthrough', 'd3d11'], bug=737016)
 
+    # Passthrough command decoder / Win / OpenGL / NVIDIA
+    self.Fail('conformance/renderbuffers/' +
+        'depth-renderbuffer-initialization.html',
+        ['win', 'passthrough', 'opengl', 'nvidia'], bug=794339)
+
     # Win failures
     # TODO(kbr): re-enable suppression for same test below once fixed.
     self.Skip('conformance/glsl/bugs/sampler-struct-function-arg.html',

content/test/gpu/gpu_tests/webgl_conformance_revision.txt

 # AUTOGENERATED FILE - DO NOT EDIT
 # SEE roll_webgl_conformance.py
-Current webgl revision 05591bbeae6592fd924caec8e728a4ea86cbb8c9
+Current webgl revision 1a8ed15c9c25f2b1ccd97149c94ea245ab982252