Add capability for GPU blacklist to manage GPU switching.

content/browser/gpu/gpu_util_unittest.cc

 // Copyright (c) 2011 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 "content/browser/gpu/gpu_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::GpuFeatureType;
 
 TEST(GpuUtilsTest, GpuFeatureTypFromString) {
@@ skipping 67 matching lines @@
               content::GPU_FEATURE_TYPE_WEBGL |
               content::GPU_FEATURE_TYPE_MULTISAMPLING)).c_str(),
       "webgl,multisampling");
   EXPECT_STREQ(
       gpu_util::GpuFeatureTypeToString(
           static_cast<content::GpuFeatureType>(
               content::GPU_FEATURE_TYPE_WEBGL |
               content::GPU_FEATURE_TYPE_ALL)).c_str(),
       "all");
 }
+
+TEST(GpuUtilsTest, GpuSwitchingOptionFromString) {
+  // Test StringToGpuSwitchingOption.
+  EXPECT_EQ(gpu_util::StringToGpuSwitchingOption("automatic"),
+            content::GPU_SWITCHING_AUTOMATIC);
+  EXPECT_EQ(gpu_util::StringToGpuSwitchingOption("force_discrete"),
+            content::GPU_SWITCHING_FORCE_DISCRETE);
+  EXPECT_EQ(gpu_util::StringToGpuSwitchingOption("force_integrated"),
+            content::GPU_SWITCHING_FORCE_INTEGRATED);
+  EXPECT_EQ(gpu_util::StringToGpuSwitchingOption("xxx"),
+            content::GPU_SWITCHING_UNKNOWN);
+}