Support multiple files for AEC dump.

content/common/media/media_stream_messages.h

Index: content/common/media/media_stream_messages.h
diff --git a/content/common/media/media_stream_messages.h b/content/common/media/media_stream_messages.h
index 0afa9ecd07fdfe962658916d43b0245a3dd9f0d8..695776cc2fb661efee61e1daa073652284bcb529 100644
--- a/content/common/media/media_stream_messages.h
+++ b/content/common/media/media_stream_messages.h
@@ -101,15 +101,6 @@ IPC_MESSAGE_CONTROL2(MediaStreamMsg_GetSourcesACK,
                      int /* request id */,
                      content::StreamDeviceInfoArray /* device_list */)
 
-// The browser hands over a file handle to the renderer to use for AEC dump.
-// TODO(grunell): This should not belong to media stream. Change when
-// refactoring MediaStreamDependencyFactory.
-IPC_MESSAGE_CONTROL1(MediaStreamMsg_EnableAecDump,
-                     IPC::PlatformFileForTransit /* file_handle */)
-
-// Tell the renderer to disable AEC dump.
-IPC_MESSAGE_CONTROL0(MediaStreamMsg_DisableAecDump)
-
 // Messages sent from the renderer to the browser.
 
 // Request a new media stream.