Suppress some flaky WebGL and WebGL2 tests

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 638 matching lines @@
     self.Fail('conformance/glsl/bugs/multiplication-assignment.html',
         ['android', 'nvidia'], bug=606096)
     self.Fail('WebglExtension_WEBGL_compressed_texture_atc',
         ['android', ('nvidia', 'NVIDIA Tegra')])
 
     # Pixel C
     self.Fail('conformance/glsl/bugs/constant-precision-qualifier.html',
         ['android', 'android-chromium',
          ('nvidia', 'NVIDIA Tegra')], bug=624621)
 
+    # NVIDIA Shield
+    self.Flaky('conformance/context/' +
+        'context-eviction-with-garbage-collection.html',
+        ['android', ('nvidia', 'NVIDIA Tegra')], bug=701929)
+
     ############
     # ChromeOS #
     ############
 
     # ChromeOS: affecting all devices.
     self.Fail('conformance/extensions/webgl-depth-texture.html',
         ['chromeos', 'no_passthrough'], bug=382651)
 
     # ChromeOS: all Intel except for pinetrail (stumpy, parrot, peppy,...)
     # We will just include pinetrail here for now as we don't want to list
@@ skipping 70 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)