Command buffer: CopyTexSubImage3D should clear the 3D texture if it is uncleared

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

 # Copyright (c) 2015 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.
 from gpu_tests.webgl_conformance_expectations import WebGLConformanceExpectations
 
 # See the GpuTestExpectations class for documentation.
 
 class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
   def __init__(self, conformance_path):
     super(WebGL2ConformanceExpectations, self).__init__(conformance_path)
@@ skipping 24 matching lines @@
 
     self.Fail('conformance2/glsl3/tricky-loop-conditions.html', bug=483282)
     self.Fail('conformance2/glsl3/vector-dynamic-indexing-nv-driver-bug.html',
         ['linux'], bug=483282)
 
     # All platforms.
     self.Fail('conformance/glsl/bugs/' +
               'invariant-does-not-leak-across-shaders.html',
               bug=634813)
 
-    self.Fail('conformance2/textures/' +
-              'misc/copy-texture-image-webgl-specific.html',
-              bug=631934)
-
     self.Flaky('conformance2/query/occlusion-query.html', bug=603168)
 
     # All platforms with AMD GPU.
     self.Fail('deqp/functional/gles3/multisample.html',
         ['amd'], bug=617290)
 
     # Windows only.
 
     # This should be fixed in the latest driver.
     self.Fail('deqp/functional/gles3/fboinvalidate/sub.html',
@@ skipping 805 matching lines @@
     # self.Fail(page_name,
     #     ['linux', ('nvidia', 0x1), 'debug', 'opengl'])
     # self.Fail(page_name,
     #     ['win', ('nvidia', 0x1), 'debug', 'opengl'])
 
     # Conflicts if between a generic os condition and a specific version
     # self.Fail(page_name,
     #     ['xp', ('nvidia', 0x1), 'debug', 'opengl'])
     # self.Fail(page_name,
     #     ['win', ('nvidia', 0x1), 'debug', 'opengl'])