Implement blacklist's force GPU capability in dual GPU machines.

content/browser/gpu/gpu_util_unittest.cc

Index: content/browser/gpu/gpu_util_unittest.cc
===================================================================
--- content/browser/gpu/gpu_util_unittest.cc	(revision 156326)
+++ content/browser/gpu/gpu_util_unittest.cc	(working copy)
@@ -88,13 +88,32 @@
 
 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(
+                kGpuSwitchingOptionNameAutomatic),
+            content::GPU_SWITCHING_OPTION_AUTOMATIC);
+  EXPECT_EQ(gpu_util::StringToGpuSwitchingOption(
+                kGpuSwitchingOptionNameForceDiscrete),
+            content::GPU_SWITCHING_OPTION_FORCE_DISCRETE);
+  EXPECT_EQ(gpu_util::StringToGpuSwitchingOption(
+                kGpuSwitchingOptionNameForceIntegrated),
+            content::GPU_SWITCHING_OPTION_FORCE_INTEGRATED);
   EXPECT_EQ(gpu_util::StringToGpuSwitchingOption("xxx"),
-            content::GPU_SWITCHING_UNKNOWN);
+            content::GPU_SWITCHING_OPTION_UNKNOWN);
 }
 
+TEST(GpuUtilsTest, GpuSwitchingOptionToString) {
+  // Test GpuSwitchingOptionToString.
+  EXPECT_STREQ(
+      gpu_util::GpuSwitchingOptionToString(
+          content::GPU_SWITCHING_OPTION_AUTOMATIC).c_str(),
+      kGpuSwitchingOptionNameAutomatic);
+  EXPECT_STREQ(
+      gpu_util::GpuSwitchingOptionToString(
+          content::GPU_SWITCHING_OPTION_FORCE_DISCRETE).c_str(),
+      kGpuSwitchingOptionNameForceDiscrete);
+  EXPECT_STREQ(
+      gpu_util::GpuSwitchingOptionToString(
+          content::GPU_SWITCHING_OPTION_FORCE_INTEGRATED).c_str(),
+      kGpuSwitchingOptionNameForceIntegrated);
+}
+