Try to remove some flaky WebGL CTS failures

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 438 matching lines @@
         'gl-bind-attrib-location-long-names-test.html',
         ['mac', ('nvidia', 0xfe9)], bug=635081)
     self.Fail('conformance/programs/gl-bind-attrib-location-test.html',
         ['mac', ('nvidia', 0xfe9)], bug=635081)
     self.Fail('conformance/renderbuffers/framebuffer-object-attachment.html',
         ['mac', ('nvidia', 0xfe9), 'no_passthrough'], bug=635081)
     self.Fail('conformance/textures/misc/tex-input-validation.html',
         ['mac', ('nvidia', 0xfe9)], bug=635081)
 
     # Linux failures
-    self.Flaky('conformance/textures/video/' +
-               'tex-2d-rgba-rgba-unsigned_byte.html',
-               ['linux', 'no_passthrough'], bug=627525)
-    self.Flaky('conformance/textures/video/' +
-               'tex-2d-rgba-rgba-unsigned_short_4_4_4_4.html',
-               ['linux', 'no_passthrough'], bug=627525)
-    self.Flaky('conformance/textures/video/' +
-               'tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html',
-               ['linux', 'no_passthrough'], bug=627525)
-    self.Flaky('conformance/textures/video/' +
-               'tex-2d-rgb-rgb-unsigned_byte.html',
-               ['linux', 'no_passthrough'], bug=627525)
-    self.Flaky('conformance/textures/video/' +
-               'tex-2d-rgb-rgb-unsigned_short_5_6_5.html',
-               ['linux', 'no_passthrough'], bug=627525)
     self.Fail('conformance/extensions/webgl-compressed-texture-astc.html',
         ['linux', 'intel'], bug=680675)
 
     # NVIDIA
     self.Flaky('conformance/extensions/oes-element-index-uint.html',
                ['linux', 'nvidia', 'no_passthrough'], bug=524144)
     self.Flaky('conformance/textures/image/' +
                'tex-2d-rgb-rgb-unsigned_byte.html',
                ['linux', 'nvidia'], bug=596622)
     self.Fail('conformance/glsl/bugs/unary-minus-operator-float-bug.html',
@@ skipping 311 matching lines @@
     self.Fail('conformance/textures/misc/texture-npot.html',
         ['chromeos', ('intel', 0xa011), 'no_passthrough'], bug=375554)
     self.Fail('conformance/textures/misc/texture-npot-video.html',
         ['chromeos', ('intel', 0xa011), 'no_passthrough'], 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)