WebGL: Mark glsl-mat4-to-mat3 flaky on Win/D3D9.

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 408 matching lines @@
     # Skipping these two tests because they're causing assertion failures.
     self.Skip('conformance/extensions/oes-texture-float-with-canvas.html',
         ['win', 'd3d9'], bug=896) # angle bug ID
     self.Skip('conformance/extensions/oes-texture-half-float-with-canvas.html',
         ['win', 'd3d9'], bug=896) # angle bug ID
     self.Fail('conformance/glsl/bugs/floor-div-cos-should-not-truncate.html',
         ['win', 'd3d9'], bug=1179) # angle bug ID
     # The functions test have been persistently flaky on D3D9
     self.Flaky('conformance/glsl/functions/*',
         ['win', 'd3d9'], bug=415609)
+    self.Flaky('conformance/glsl/matrices/glsl-mat4-to-mat3.html',
+        ['win', 'd3d9'], bug=617148)
 
     # WIN / D3D9 / Intel failures
     self.Fail('conformance/ogles/GL/cos/cos_001_to_006.html',
         ['win', 'intel', 'd3d9'], bug=540538)
 
     # WIN / OpenGL / NVIDIA failures
     # Mark ANGLE's OpenGL as flaky on Windows Nvidia
     self.Flaky('conformance/*', ['win', 'nvidia', 'opengl'], bug=582083)
 
     # Win / OpenGL / AMD failures
@@ skipping 317 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)