Move media/audio files into media namespace

media/audio/fake_audio_input_stream.h

Index: media/audio/fake_audio_input_stream.h
diff --git a/media/audio/fake_audio_input_stream.h b/media/audio/fake_audio_input_stream.h
index 409b799bc1f4c2ead618ba71da68d268efd50d71..ceed1a0877938025ead21ddc9aa92fb05ffb3e41 100644
--- a/media/audio/fake_audio_input_stream.h
+++ b/media/audio/fake_audio_input_stream.h
@@ -13,9 +13,11 @@
 #include "base/threading/thread.h"
 #include "base/time.h"
 #include "media/audio/audio_io.h"
-#include "media/audio/audio_parameters.h"
+
+namespace media {
 
 class AudioManagerBase;
+class AudioParameters;
 
 class MEDIA_EXPORT FakeAudioInputStream
     : public AudioInputStream {
@@ -52,4 +54,6 @@ class MEDIA_EXPORT FakeAudioInputStream
   DISALLOW_COPY_AND_ASSIGN(FakeAudioInputStream);
 };
 
+}  // namespace media
+
 #endif  // MEDIA_AUDIO_FAKE_AUDIO_INPUT_STREAM_H_