Mojo: Remove knowledge of Channel, etc. from ProxyMessagePipeEndpoint.

mojo/system/message_pipe.h

 // Copyright 2013 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_SYSTEM_MESSAGE_PIPE_H_
 #define MOJO_SYSTEM_MESSAGE_PIPE_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "mojo/public/c/system/message_pipe.h"
 #include "mojo/public/c/system/types.h"
 #include "mojo/system/dispatcher.h"
 #include "mojo/system/handle_signals_state.h"
 #include "mojo/system/memory.h"
 #include "mojo/system/message_in_transit.h"
 #include "mojo/system/message_pipe_endpoint.h"
 #include "mojo/system/system_impl_export.h"
 
 namespace mojo {
 namespace system {
 
-class Channel;
 class ChannelEndpoint;
 class Waiter;
 
 // |MessagePipe| is the secondary object implementing a message pipe (see the
 // explanatory comment in core.cc). It is typically owned by the dispatcher(s)
 // corresponding to the local endpoints. This class is thread-safe.
 class MOJO_SYSTEM_IMPL_EXPORT MessagePipe
     : public base::RefCountedThreadSafe<MessagePipe> {
  public:
   MessagePipe(scoped_ptr<MessagePipeEndpoint> endpoint0,
@@ skipping 50 matching lines @@
   // endpoint.
   void ConvertLocalToProxy(unsigned port);
 
   // This is used by |Channel| to enqueue messages (typically to a
   // |LocalMessagePipeEndpoint|). Unlike |WriteMessage()|, |port| is the
   // *destination* port.
   MojoResult EnqueueMessage(unsigned port,
                             scoped_ptr<MessageInTransit> message);
 
   // These are used by |Channel|.
-  bool Attach(unsigned port,
-              ChannelEndpoint* channel_endpoint,
-              Channel* channel,
-              MessageInTransit::EndpointId local_id);
-  void Run(unsigned port, MessageInTransit::EndpointId remote_id);
+  bool Attach(unsigned port, ChannelEndpoint* channel_endpoint);
+  void Run(unsigned port);
   void OnRemove(unsigned port);
 
  private:
   friend class base::RefCountedThreadSafe<MessagePipe>;
   virtual ~MessagePipe();
 
   // This is used internally by |WriteMessage()| and by |EnqueueMessage()|.
   // |transports| may be non-null only if it's nonempty and |message| has no
   // dispatchers attached.
   MojoResult EnqueueMessageInternal(
@@ skipping 15 matching lines @@
   base::Lock lock_;  // Protects the following members.
   scoped_ptr<MessagePipeEndpoint> endpoints_[2];
 
   DISALLOW_COPY_AND_ASSIGN(MessagePipe);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_SYSTEM_MESSAGE_PIPE_H_