[PPAPI] Pepper MediaStream API audio track implementation and example.

ppapi/proxy/ppapi_messages.h

Index: ppapi/proxy/ppapi_messages.h
diff --git a/ppapi/proxy/ppapi_messages.h b/ppapi/proxy/ppapi_messages.h
index a6f8f2ca319bf57908c814fece417aac95eeaafe..7463af8207dbd93b45c63b0f0835d714bbed7a7d 100644
--- a/ppapi/proxy/ppapi_messages.h
+++ b/ppapi/proxy/ppapi_messages.h
@@ -1434,9 +1434,12 @@ IPC_MESSAGE_CONTROL1(PpapiPluginMsg_IsolatedFileSystem_BrowserOpenReply,
                      std::string /* fsid */)
 
 // MediaStream -----------------------------------------------------------------
-// Message for init frames. It also takes a shared memory handle.
+IPC_MESSAGE_CONTROL1(PpapiPluginMsg_MediaStreamAudioTrack_CreateFromPendingHost,
+                     std::string /* track_id */)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_MediaStreamVideoTrack_CreateFromPendingHost,
                      std::string /* track_id */)
+
+// Message for init frames. It also takes a shared memory handle.

[dmichael (off chromium), 2014/02/03 22:18:34]

Might be clearer to explain that the shared memory handle is put in the outer
ResourceReplyMessage

[Peng, 2014/02/03 22:50:31]

Done.

 IPC_MESSAGE_CONTROL2(PpapiPluginMsg_MediaStreamTrack_InitFrames,
                      int32_t /* number_of_frames */,
                      int32_t /* frame_size */)