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

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

Index: mojo/public/cpp/bindings/lib/multiplex_router.h
diff --git a/mojo/public/cpp/bindings/lib/multiplex_router.h b/mojo/public/cpp/bindings/lib/multiplex_router.h
index dc66e8ee83230731ab42beb0e3bdbe3e2169b3b6..ccfd1c73dcb403e36ec3b72a481cd5d2100f27d5 100644
--- a/mojo/public/cpp/bindings/lib/multiplex_router.h
+++ b/mojo/public/cpp/bindings/lib/multiplex_router.h
@@ -102,14 +102,8 @@ class MultiplexRouter
   }
 
   // See Binding for details of pause/resume.
-  void PauseIncomingMethodCallProcessing() {
-    DCHECK(thread_checker_.CalledOnValidThread());
-    connector_.PauseIncomingMethodCallProcessing();
-  }
-  void ResumeIncomingMethodCallProcessing() {
-    DCHECK(thread_checker_.CalledOnValidThread());
-    connector_.ResumeIncomingMethodCallProcessing();
-  }
+  void PauseIncomingMethodCallProcessing();
+  void ResumeIncomingMethodCallProcessing();
 
   // Whether there are any associated interfaces running currently.
   bool HasAssociatedEndpoints() const;
@@ -229,6 +223,8 @@ class MultiplexRouter
 
   bool encountered_error_;
 
+  bool paused_;
+
   bool testing_mode_;
 
   DISALLOW_COPY_AND_ASSIGN(MultiplexRouter);