Added option to specify a maximum file size when recording an AEC dump.

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..25580d1b748704229bb274b37b4c17c478c9ea40 100644
--- a/talk/session/media/channelmanager.cc
+++ b/talk/session/media/channelmanager.cc
@@ -630,6 +630,12 @@ bool ChannelManager::StartAecDump(rtc::PlatformFile file) {
       Bind(&MediaEngineInterface::StartAecDump, media_engine_.get(), file));
 }
 
+bool ChannelManager::StartAecDump(rtc::PlatformFile file, int max_size_bytes) {
+  return worker_thread_->Invoke<bool>(Bind(&MediaEngineInterface::StartAecDump,
+                                           media_engine_.get(), file,
+                                           max_size_bytes));
+}
+
 bool ChannelManager::StartRtcEventLog(rtc::PlatformFile file) {
   return worker_thread_->Invoke<bool>(
       Bind(&MediaEngineInterface::StartRtcEventLog, media_engine_.get(), file));