Moves GPUMetricsProvider to //components/metrics.

components/metrics/gpu/gpu_metrics_provider.h

 // Copyright 2014 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.
 
-#ifndef CHROME_BROWSER_METRICS_GPU_METRICS_PROVIDER_H_
-#define CHROME_BROWSER_METRICS_GPU_METRICS_PROVIDER_H_
+#ifndef COMPONENTS_METRICS_GPU_GPU_METRICS_PROVIDER_H_
+#define COMPONENTS_METRICS_GPU_GPU_METRICS_PROVIDER_H_
 
 #include "base/basictypes.h"
 #include "components/metrics/metrics_provider.h"
 #include "ui/gfx/size.h"
 
+namespace metrics {
+
 // GPUMetricsProvider provides GPU-related metrics.
-class GPUMetricsProvider : public metrics::MetricsProvider {
+class GPUMetricsProvider : public MetricsProvider {
  public:
   GPUMetricsProvider();
   virtual ~GPUMetricsProvider();
 
-  // metrics::MetricsProvider:
+  // MetricsProvider:
   virtual void ProvideSystemProfileMetrics(
-      metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
+      SystemProfileProto* system_profile_proto) OVERRIDE;
 
  protected:
   // Exposed for the sake of mocking in test code.
 
   // Returns the screen size for the primary monitor.
   virtual gfx::Size GetScreenSize() const;
 
   // Returns the device scale factor for the primary monitor.
   virtual float GetScreenDeviceScaleFactor() const;
 
   // Returns the number of monitors the user is using.
   virtual int GetScreenCount() const;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GPUMetricsProvider);
 };
 
-#endif  // CHROME_BROWSER_METRICS_GPU_METRICS_PROVIDER_H_
+}  // namespace metrics
+
+#endif  // COMPONENTS_METRICS_GPU_GPU_METRICS_PROVIDER_H_