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 214b8bf91c1d4b837bd67db497fbcd61f488bf5f..20fbe71bac0ce846b4c4a15aeabd6783e5961c06 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)
@@ -641,3 +643,5 @@ HRESULT WASAPIAudioInputStream::InitializeAudioEngine() {
                                  simple_audio_volume_.ReceiveVoid());
   return hr;
 }
+
+}  // namespace media