Move media/audio files into media namespace

media/audio/win/audio_low_latency_input_win.cc

Index: media/audio/win/audio_low_latency_input_win.cc
diff --git a/media/audio/win/audio_low_latency_input_win.cc b/media/audio/win/audio_low_latency_input_win.cc
index 8344abae680b27fd64733ec5a88cfa61f6336ea8..24336a0c5056c3984533bac5b926054e3f86aa68 100644
--- a/media/audio/win/audio_low_latency_input_win.cc
+++ b/media/audio/win/audio_low_latency_input_win.cc
@@ -14,6 +14,8 @@
 using base::win::ScopedComPtr;
 using base::win::ScopedCOMInitializer;
 
+namespace media {
+
 WASAPIAudioInputStream::WASAPIAudioInputStream(
     AudioManagerWin* manager, const AudioParameters& params,
     const std::string& device_id)
@@ -625,3 +627,5 @@ HRESULT WASAPIAudioInputStream::InitializeAudioEngine() {
                                  simple_audio_volume_.ReceiveVoid());
   return hr;
 }
+
+}  // namespace media