Roll WebGL f7157c2..2395287

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/f7157c2..2395287

BUG=693090,712096

TEST=bots

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

Review-Url: https://codereview.chromium.org/2844363004
Cr-Commit-Position: refs/heads/master@{#468067}

DEPS

@@ -199,7 +199,7 @@ deps = {
     Var('chromium_git') + '/external/bidichecker/lib.git' + '@' + '97f2aa645b74c28c57eca56992235c79850fa9e0',
 
   'src/third_party/webgl/src':
-    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'f7157c2751220a8f0def9f3f7f6ff37392ac83f0',
+    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '239528772a1362d0e0c2d1cb2f256f19d6e0c1c1',
 
   'src/third_party/webdriver/pylib':
     Var('chromium_git') + '/external/selenium/py.git' + '@' + '5fd78261a75fe08d27ca4835fb6c5ce4b42275bd',

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -43,6 +43,7 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     # All platforms.
     self.Flaky('conformance2/query/occlusion-query.html', bug=603168)
     self.Fail('conformance2/glsl3/tricky-loop-conditions.html', bug=483282)
+    self.Fail('conformance2/textures/misc/tex-srgb-mipmap.html', bug=712096)
 
     # canvas.commit() promise synchronization isn't fully reliable yet.
     self.Fail('conformance/offscreencanvas/offscreencanvas-resize.html',
@@ -108,8 +109,6 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         ['win', 'nvidia', 'opengl'], bug=693090)
     self.Fail('conformance2/glsl3/vector-dynamic-indexing-nv-driver-bug.html',
         ['win', 'nvidia', 'opengl'], bug=693090)
-    self.Fail('conformance2/textures/misc/tex-srgb-mipmap.html',
-        ['win', 'nvidia', 'opengl'], bug=693090)
     self.Fail('conformance2/glsl3/' +
         'vector-dynamic-indexing-swizzled-lvalue.html',
         ['win', 'nvidia', 'opengl'], bug=709874)

content/test/gpu/gpu_tests/webgl_conformance_revision.txt

 # AUTOGENERATED FILE - DO NOT EDIT
 # SEE roll_webgl_conformance.py
-Current webgl revision f7157c2751220a8f0def9f3f7f6ff37392ac83f0
+Current webgl revision 239528772a1362d0e0c2d1cb2f256f19d6e0c1c1