Mark failing passthrough CB WebGL conformance test on Win10

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 import os
 
 from gpu_tests.gpu_test_expectations import GpuTestExpectations
 
 # See the GpuTestExpectations class for documentation.
 
 class WebGLConformanceExpectations(GpuTestExpectations):
@@ skipping 334 matching lines @@
         ['win', 'passthrough', 'd3d11'], bug=1523) # angle bug ID
 
     # Win / Intel / Passthrough command decoder
     self.Flaky('conformance/renderbuffers/framebuffer-state-restoration.html',
         ['win', 'intel', 'passthrough', 'd3d11'], bug=602688)
     self.Fail('conformance/renderbuffers/renderbuffer-initialization.html',
         ['win', 'intel', 'passthrough', 'd3d11'], bug=1635) # angle bug ID
     self.Fail('conformance/textures/misc/' +
         'copytexsubimage2d-large-partial-copy-corruption.html',
         ['win', 'intel', 'passthrough', 'd3d11'], bug=602688)
-    self.Flaky('conformance/textures/misc/copytexsubimage2d-subrects.html',
+    self.Fail('conformance/textures/misc/copytexsubimage2d-subrects.html',
         ['win10', 'intel', 'passthrough', 'd3d11'], bug=685232)
 
     # Mac failures
     self.Flaky('conformance/extensions/oes-texture-float-with-video.html',
         ['mac'], bug=599272)
 
     # Mac AMD failures
     self.Fail('conformance/glsl/bugs/bool-type-cast-bug-int-float.html',
         ['mac', 'amd'], bug=483282)
     self.Fail('conformance/extensions/webgl-draw-buffers.html',
@@ skipping 486 matching lines @@
     self.Fail('conformance/textures/misc/texture-npot.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Fail('conformance/textures/misc/texture-npot-video.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Fail('conformance/textures/misc/texture-size.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Fail('conformance/uniforms/gl-uniform-arrays.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Skip('conformance/uniforms/uniform-default-values.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)