Adding more detail to MessageQueue::Dispatch logging.

webrtc/pc/channel.h

Index: webrtc/pc/channel.h
diff --git a/webrtc/pc/channel.h b/webrtc/pc/channel.h
index 348dbe2996c1bf58be4f9efa7c13e30f8ed43aa8..f994bdabd18d3e9967316abf3ff35fa0c1808da4 100644
--- a/webrtc/pc/channel.h
+++ b/webrtc/pc/channel.h
@@ -308,8 +308,9 @@ class BaseChannel
 
   // Helper function for invoking bool-returning methods on the worker thread.
   template <class FunctorT>
-  bool InvokeOnWorker(const FunctorT& functor) {
-    return worker_thread_->Invoke<bool>(functor);
+  bool InvokeOnWorker(const rtc::Location& posted_from,
+                      const FunctorT& functor) {
+    return worker_thread_->Invoke<bool>(posted_from, functor);
   }
 
  private: