Added StopAecDump function to PeerConnectionFactory.

talk/session/media/channelmanager.cc

Index: talk/session/media/channelmanager.cc
diff --git a/talk/session/media/channelmanager.cc b/talk/session/media/channelmanager.cc
index 5caf3c4b575e4e03978ee1ab10f4530f638bdf0d..e7e1cd44a22dd61aa8cacd7d44ed64285dc6c1b7 100644
--- a/talk/session/media/channelmanager.cc
+++ b/talk/session/media/channelmanager.cc
@@ -630,6 +630,11 @@ bool ChannelManager::StartAecDump(rtc::PlatformFile file) {
       Bind(&MediaEngineInterface::StartAecDump, media_engine_.get(), file));
 }
 
+void ChannelManager::StopAecDump() {
+  worker_thread_->Invoke<void>(
+      Bind(&MediaEngineInterface::StopAecDump, media_engine_.get()));
+}
+
 bool ChannelManager::StartRtcEventLog(rtc::PlatformFile file) {
   return worker_thread_->Invoke<bool>(
       Bind(&MediaEngineInterface::StartRtcEventLog, media_engine_.get(), file));