Move media/audio files into media namespace

media/audio/win/audio_output_win_unittest.cc

Index: media/audio/win/audio_output_win_unittest.cc
diff --git a/media/audio/win/audio_output_win_unittest.cc b/media/audio/win/audio_output_win_unittest.cc
index a6e240d7ea71a3800a898aab72a29e8d4022a4ed..11b56936a694a535776aeb7ea089eeb7f73dc2d6 100644
--- a/media/audio/win/audio_output_win_unittest.cc
+++ b/media/audio/win/audio_output_win_unittest.cc
@@ -31,6 +31,8 @@ using ::testing::Return;
 
 using base::win::ScopedCOMInitializer;
 
+namespace media {
+
 static const wchar_t kAudioFile1_16b_m_16K[]
     = L"media\\test\\data\\sweep02_16b_mono_16KHz.raw";
 
@@ -744,3 +746,5 @@ TEST(WinAudioTest, SyncSocketBasic) {
   oas->Stop();
   oas->Close();
 }
+
+}  // namespace media