Update webgl conformance test expectations

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.
 
 from telemetry.page import test_expectations
 
 # Valid expectation conditions are:
 #
 # Operating systems:
 #     win, xp, vista, win7, mac, leopard, snowleopard, lion, mountainlion,
 #     linux, chromeos, android
 #
 # GPU vendors:
 #     amd, arm, broadcom, hisilicon, intel, imagination, nvidia, qualcomm,
 #     vivante
 #
 # Specific GPUs can be listed as a tuple with vendor name and device ID.
 # Examples: ('nvidia', 0x1234), ('arm', 'Mali-T604')
 # Device IDs must be paired with a GPU vendor.
 
 class WebGLConformanceExpectations(test_expectations.TestExpectations):
   def SetExpectations(self):
     # Sample Usage:
     # self.Fail('gl-enable-vertex-attrib.html',
     #     ['mac', 'amd', ('nvidia', 0x1234)], bug=123)
 
     # Fails on all platforms
     self.Fail('conformance/glsl/misc/shaders-with-mis-matching-uniforms.html',
         bug=351396)
-    self.Fail('conformance/glsl/misc/boolean_precision.html',
-        bug=368874)
-    self.Fail('conformance/glsl/misc/shader-struct-scope.html',
-        bug=368910)
 
     # Flaky on Win
     self.Fail('conformance/extensions/webgl-draw-buffers.html',
         ['win'], bug=369349)
     self.Fail('conformance/context/context-lost-restored.html',
         ['win'], bug=374378)
 
     # Win7 / Intel failures
     self.Fail('conformance/rendering/gl-scissor-test.html',
         ['win7', 'intel'], bug=314997)
     self.Fail('conformance/context/premultiplyalpha-test.html',
         ['win7', 'intel'])
     self.Fail('conformance/textures/copy-tex-image-and-sub-image-2d.html',
         ['win7', 'intel'])
     self.Fail('conformance/rendering/gl-viewport-test.html',
         ['win7', 'intel'], bug=372511)
     self.Fail('conformance/glsl/misc/shader-with-array-of-structs-uniform.html',
         ['win7', 'intel', 'nvidia'], bug=373972)
 
+    # Mac failures
+    self.Fail('conformance/glsl/misc/shader-struct-scope.html',
+        ['mac'], bug=368910)
+
     # Mac / Intel failures
     # Radar 13499466
     self.Fail('conformance/limits/gl-max-texture-dimensions.html',
         ['mac', 'intel'], bug=225642)
     # Radar 13499623
     self.Fail('conformance/textures/texture-size.html',
         ['mac', 'intel'], bug=225642)
 
     # Mac / Intel HD 3000 failures
     self.Skip('conformance/ogles/GL/control_flow/control_flow_009_to_010.html',
@@ skipping 187 matching lines @@
         'conformance/textures/tex-image-and-sub-image-2d-with-video-rgb565.html',
         ['chromeos'], bug=28982)
     self.Fail(
         'conformance/textures/tex-image-and-sub-image-2d-with-video-rgba4444.html',
         ['chromeos'], bug=28982)
     self.Fail(
         'conformance/textures/tex-image-and-sub-image-2d-with-video-rgba5551.html',
         ['chromeos'], bug=28982)
     self.Fail('conformance/textures/texture-npot-video.html',
         ['chromeos'], bug=28982)