Mojo C++ bindings: fix Pause/Resume for MultiplexRouter.

mojo/public/cpp/bindings/lib/router.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 71 matching lines @@
                            MessageReceiver* responder) override;
 
   // Blocks the current thread until the first incoming method call, i.e.,
   // either a call to a client method or a callback method, or |deadline|.
   bool WaitForIncomingMessage(MojoDeadline deadline) {
     DCHECK(thread_checker_.CalledOnValidThread());
     return connector_.WaitForIncomingMessage(deadline);
   }
 
   // See Binding for details of pause/resume.
+  // Note: This doesn't strictly pause incoming calls. If there are
+  // queued messages, they may be dispatched during pause.
   void PauseIncomingMethodCallProcessing() {
     DCHECK(thread_checker_.CalledOnValidThread());
     connector_.PauseIncomingMethodCallProcessing();
   }
   void ResumeIncomingMethodCallProcessing() {
     DCHECK(thread_checker_.CalledOnValidThread());
     connector_.ResumeIncomingMethodCallProcessing();
   }
 
   // Sets this object to testing mode.
@@ skipping 66 matching lines @@
   bool encountered_error_;
   base::Closure error_handler_;
   base::ThreadChecker thread_checker_;
   base::WeakPtrFactory<Router> weak_factory_;
 };
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_