Move GPU device/driver info related code from content to gpu.

gpu/config/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 "gpu/config/gpu_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_switches.h"
 
-namespace content {
+namespace gpu {
 
 TEST(GpuUtilTest, GpuSwitchingOptionFromString) {
   // Test StringToGpuSwitchingOption.
   EXPECT_EQ(StringToGpuSwitchingOption(
                 switches::kGpuSwitchingOptionNameAutomatic),
             GPU_SWITCHING_OPTION_AUTOMATIC);
   EXPECT_EQ(StringToGpuSwitchingOption(
                 switches::kGpuSwitchingOptionNameForceDiscrete),
             GPU_SWITCHING_OPTION_FORCE_DISCRETE);
   EXPECT_EQ(StringToGpuSwitchingOption(
@@ skipping 48 matching lines @@
     std::set<int> src;
     std::set<int> dst;
     src.insert(1);
     dst.insert(2);
     EXPECT_EQ(1u, dst.size());
     MergeFeatureSets(&dst, src);
     EXPECT_EQ(2u, dst.size());
   }
 }
 
-}  // namespace content
+}  // namespace gpu