Move MetricsStateManager into the Metrics component.

components/metrics/metrics_state_manager.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_METRICS_STATE_MANAGER_H_
-#define CHROME_BROWSER_METRICS_METRICS_STATE_MANAGER_H_
+#ifndef COMPONENTS_METRICS_METRICS_STATE_MANAGER_H_
+#define COMPONENTS_METRICS_METRICS_STATE_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 
 class PrefService;
@@ skipping 104 matching lines @@
   // The last entropy source returned by this service, used for testing.
   EntropySourceType entropy_source_returned_;
 
   scoped_ptr<ClonedInstallDetector> cloned_install_detector_;
 
   DISALLOW_COPY_AND_ASSIGN(MetricsStateManager);
 };
 
 }  // namespace metrics
 
-#endif  // CHROME_BROWSER_METRICS_METRICS_STATE_MANAGER_H_
+#endif  // COMPONENTS_METRICS_METRICS_STATE_MANAGER_H_