Disable GpuFeatureTest.WebGLBlocked and WebGLAllowed on ChromeOS

chrome/test/gpu/gpu_feature_browsertest.cc

 // Copyright (c) 2012 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.
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/stringprintf.h"
 #include "base/test/trace_event_analyzer.h"
@@ skipping 238 matching lines @@
 #define MAYBE_AcceleratedCompositingDisabled AcceleratedCompositingDisabled
 #endif
 
 IN_PROC_BROWSER_TEST_F(AcceleratedCompositingTest,
                        MAYBE_AcceleratedCompositingDisabled) {
 // Compositing is always on for Windows Aura.
   const FilePath url(FILE_PATH_LITERAL("feature_compositing.html"));
   RunEventTest(url, kSwapBuffersEvent, false);
 }
 
-IN_PROC_BROWSER_TEST_F(GpuFeatureTest, WebGLAllowed) {
+// Flaky on ChromeOS, http://crbug.com/168972
+#if defined(OS_CHROMEOS)
+#define MAYBE_WebGLAllowed DISABLED_WebGLAllowed
+#else
+#define MAYBE_WebGLAllowed WebGLAllowed
+#endif
+IN_PROC_BROWSER_TEST_F(GpuFeatureTest, MAYBE_WebGLAllowed) {
   GpuFeatureType type =
       GpuDataManager::GetInstance()->GetBlacklistedFeatures();
   EXPECT_EQ(type, 0);
 
   const FilePath url(FILE_PATH_LITERAL("feature_webgl.html"));
   RunEventTest(url, kWebGLCreationEvent, true);
 }
 
-IN_PROC_BROWSER_TEST_F(GpuFeatureTest, WebGLBlocked) {
+// Flaky on ChromeOS, http://crbug.com/168972
+#if defined(OS_CHROMEOS)
+#define MAYBE_WebGLBlocked DISABLED_WebGLBlocked
+#else
+#define MAYBE_WebGLBlocked WebGLBlocked
+#endif
+IN_PROC_BROWSER_TEST_F(GpuFeatureTest, MAYBE_WebGLBlocked) {
   const std::string json_blacklist =
       "{\n"
       "  \"name\": \"gpu blacklist\",\n"
       "  \"version\": \"1.0\",\n"
       "  \"entries\": [\n"
       "    {\n"
       "      \"id\": 1,\n"
       "      \"blacklist\": [\n"
       "        \"webgl\"\n"
       "      ]\n"
@@ skipping 288 matching lines @@
           base::StringPrintf(
               "%d (resize offset %d): IOSurface width %d -> %d; Creates %d "
               "Expected %d", offset_i, offsets[offset_i],
               old_width, new_width, num_creates, expected_creates);
     }
   }
 }
 #endif
 
 }  // namespace anonymous