Move MessageLoop to base namespace.

content/browser/device_orientation/provider_impl.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_PROVIDER_IMPL_H_
 #define CONTENT_BROWSER_DEVICE_ORIENTATION_PROVIDER_IMPL_H_
 
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/device_orientation/data_fetcher.h"
 #include "content/browser/device_orientation/device_data.h"
 #include "content/browser/device_orientation/provider.h"
 #include "content/common/content_export.h"
 
+namespace base {
 class MessageLoop;
+}
 
 namespace content {
 
 class ProviderImpl : public Provider {
  public:
   typedef DataFetcher* (*DataFetcherFactory)();
 
   // Create a ProviderImpl that uses the factory to create a DataFetcher that
   // can provide data. A NULL DataFetcherFactory indicates that there are no
   // DataFetchers for this OS.
@@ skipping 18 matching lines @@
   // Method for notifying observers of a data update.
   // Runs on the creator_thread_.
   void DoNotify(const scoped_refptr<const DeviceData>& data,
                 DeviceData::Type device_data_type);
 
   static bool ShouldFireEvent(const DeviceData* old_data,
       const DeviceData* new_data, DeviceData::Type device_data_type);
 
   // The Message Loop on which this object was created.
   // Typically the I/O loop, but may be something else during testing.
-  MessageLoop* creator_loop_;
+  base::MessageLoop* creator_loop_;
 
   // Members below are only to be used from the creator_loop_.
   DataFetcherFactory factory_;
   std::set<Observer*> observers_;
   std::map<DeviceData::Type, scoped_refptr<const DeviceData> >
       last_notifications_map_;
 
   // When polling_thread_ is running, members below are only to be used
   // from that thread.
   base::WeakPtrFactory<ProviderImpl> weak_factory_;
 
   // Polling is done on this background thread. PollingThread is owned by
   // the ProviderImpl object. But its deletion doesn't happen synchronously
   // along with deletion of the ProviderImpl. Thus this should be a raw
   // pointer instead of scoped_ptr.
   PollingThread* polling_thread_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVICE_ORIENTATION_PROVIDER_IMPL_H_