Cleanup: Remove chrome namespace for storage monitor and media galleries.

chrome/browser/storage_monitor/transient_device_ids.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.
 
 // TransientDeviceIds keep track of transient IDs for removable devices, so
 // persistent device IDs are not exposed to renderers. Once a removable device
 // gets mapped to a transient ID, the mapping remains valid for the duration of
 // TransientDeviceIds' lifetime.
 
 #ifndef CHROME_BROWSER_STORAGE_MONITOR_TRANSIENT_DEVICE_IDS_H_
 #define CHROME_BROWSER_STORAGE_MONITOR_TRANSIENT_DEVICE_IDS_H_
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/threading/thread_checker.h"
 
-namespace chrome {
-
 class TransientDeviceIds {
  public:
   TransientDeviceIds();
   ~TransientDeviceIds();
 
   // Returns the transient ID for a given |device_id|.
   // |device_id| must be for a fixed or removable storage device.
   // If |device_id| has never been seen before, a new, unique transient id will
   // be assigned.
   std::string GetTransientIdForDeviceId(const std::string& device_id);
 
   // Get the reverse mapping for a transient ID. Returns an empty string if the
   // |transient_id| cannot be found.
   std::string DeviceIdFromTransientId(const std::string& transient_id) const;
 
  private:
   typedef std::map<std::string, std::string> IdMap;
 
   IdMap device_id_map_;
   IdMap transient_id_map_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(TransientDeviceIds);
 };
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_STORAGE_MONITOR_TRANSIENT_DEVICE_IDS_H_