Mojo C++ Bindings: Extract AssociatedGroupController from MultiplexRouter

mojo/public/cpp/bindings/interface_endpoint_controller.h

 // Copyright 2016 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_INTERFACE_ENDPOINT_CONTROLLER_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_ENDPOINT_CONTROLLER_H_
+#ifndef MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_ENDPOINT_CONTROLLER_H_
+#define MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_ENDPOINT_CONTROLLER_H_
 
 namespace mojo {
 
 class Message;
 
-namespace internal {
-
-// A control interface exposed by MultiplexRouter for interface endpoints.
+// A control interface exposed by AssociatedGroupController for interface
+// endpoints.
 class InterfaceEndpointController {
  public:
   virtual ~InterfaceEndpointController() {}
 
   virtual bool SendMessage(Message* message) = 0;
 
   // Allows the interface endpoint to watch for incoming sync messages while
   // others perform sync handle watching on the same thread. Please see comments
   // of SyncHandleWatcher::AllowWokenUpBySyncWatchOnSameThread().
   virtual void AllowWokenUpBySyncWatchOnSameThread() = 0;
 
   // Watches the interface endpoint for incoming sync messages. (It also watches
   // other other handles registered to be watched together.)
   // This method:
   //   - returns true when |should_stop| is set to true;
   //   - return false otherwise, including
   //     MultiplexRouter::DetachEndpointClient() being called for the same
   //     interface endpoint.
   virtual bool SyncWatch(const bool* should_stop) = 0;
 };
 
-}  // namespace internal
 }  // namespace mojo
 
-#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_ENDPOINT_CONTROLLER_H_
+#endif  // MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_ENDPOINT_CONTROLLER_H_