Moves device_orientation to content namespace

content/browser/device_orientation/data_fetcher.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_H_
 #define CONTENT_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_H_
 
 #include "content/browser/device_orientation/device_data.h"
 
-namespace device_orientation {
+namespace content {
 
 class DataFetcher {
  public:
   virtual ~DataFetcher() {}
 
   // Returns NULL if there was a fatal error getting the device data of this
   // type or if this fetcher can never provide this type of data. Otherwise,
   // returns a pointer to a DeviceData containing the most recent data.
   virtual const DeviceData* GetDeviceData(DeviceData::Type type) = 0;
 };
 
-}  // namespace device_orientation
+}  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVICE_ORIENTATION_DATA_FETCHER_H_