Move MessageLoop to base namespace.

media/audio/linux/alsa_output.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.
 //
 // Creates an output stream based on the ALSA PCM interface.
 //
 // On device write failure, the stream will move itself to an invalid state.
 // No more data will be pulled from the data source, or written to the device.
 // All calls to public API functions will either no-op themselves, or return an
 // error if possible.  Specifically, If the stream is in an error state, Open()
@@ skipping 15 matching lines @@
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_parameters.h"
 
+namespace base {
 class MessageLoop;
+}
 
 namespace media {
 
 class AlsaWrapper;
 class AudioManagerLinux;
 class ChannelMixer;
 class SeekableBuffer;
 
 class MEDIA_EXPORT AlsaPcmOutputStream : public AudioOutputStream {
  public:
@@ skipping 137 matching lines @@
   // Wrapper class to invoke all the ALSA functions.
   AlsaWrapper* wrapper_;
 
   // Audio manager that created us.  Used to report that we've been closed.
   AudioManagerLinux* manager_;
 
   // Message loop to use for polling. The object is owned by the AudioManager.
   // We hold a reference to the audio thread message loop since
   // AudioManagerBase::ShutDown() can invalidate the message loop pointer
   // before the stream gets deleted.
-  MessageLoop* message_loop_;
+  base::MessageLoop* message_loop_;
 
   // Handle to the actual PCM playback device.
   snd_pcm_t* playback_handle_;
 
   scoped_ptr<media::SeekableBuffer> buffer_;
   uint32 frames_per_packet_;
 
   // Allows us to run tasks on the AlsaPcmOutputStream instance which are
   // bound by its lifetime.
   base::WeakPtrFactory<AlsaPcmOutputStream> weak_factory_;
@@ skipping 12 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(AlsaPcmOutputStream);
 };
 
 MEDIA_EXPORT std::ostream& operator<<(std::ostream& os,
                                       AlsaPcmOutputStream::InternalState);
 
 };  // namespace media
 
 #endif  // MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_