Convert mojo::system::ChannelEndpointClient to use our new refcounting stuff (instead of base's).

mojo/edk/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_EDK_SYSTEM_MESSAGE_PIPE_H_
 #define MOJO_EDK_SYSTEM_MESSAGE_PIPE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 21 matching lines @@
 class Channel;
 class ChannelEndpoint;
 class MessageInTransitQueue;
 
 // |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 MessagePipe final : public ChannelEndpointClient {
  public:
   // Creates a |MessagePipe| with two new |LocalMessagePipeEndpoint|s.
-  static MessagePipe* CreateLocalLocal();
+  static RefPtr<MessagePipe> CreateLocalLocal();
 
   // Creates a |MessagePipe| with a |LocalMessagePipeEndpoint| on port 0 and a
   // |ProxyMessagePipeEndpoint| on port 1. |*channel_endpoint| is set to the
   // (newly-created) |ChannelEndpoint| for the latter.
-  static MessagePipe* CreateLocalProxy(
+  static RefPtr<MessagePipe> CreateLocalProxy(
       RefPtr<ChannelEndpoint>* channel_endpoint);
 
   // Similar to |CreateLocalProxy()|, except that it'll do so from an existing
   // |ChannelEndpoint| (whose |ReplaceClient()| it'll call) and take
   // |message_queue|'s contents as already-received incoming messages. If
   // |channel_endpoint| is null, this will create a "half-open" message pipe.
-  static MessagePipe* CreateLocalProxyFromExisting(
+  static RefPtr<MessagePipe> CreateLocalProxyFromExisting(
       MessageInTransitQueue* message_queue,
       RefPtr<ChannelEndpoint>&& channel_endpoint);
 
   // Creates a |MessagePipe| with a |ProxyMessagePipeEndpoint| on port 0 and a
   // |LocalMessagePipeEndpoint| on port 1. |*channel_endpoint| is set to the
   // (newly-created) |ChannelEndpoint| for the former.
   // Note: This is really only needed in tests (outside of tests, this
   // configuration arises from a local message pipe having its port 0
   // "converted" using |ConvertLocalToProxy()|).
-  static MessagePipe* CreateProxyLocal(
+  static RefPtr<MessagePipe> CreateProxyLocal(
       RefPtr<ChannelEndpoint>* channel_endpoint);
 
   // Gets the other port number (i.e., 0 -> 1, 1 -> 0).
   static unsigned GetPeerPort(unsigned port);
 
   // Used by |MessagePipeDispatcher::Deserialize()|. Returns true on success (in
   // which case, |*message_pipe|/|*port| are set appropriately) and false on
   // failure (in which case |*message_pipe| may or may not be set to null).
   static bool Deserialize(Channel* channel,
                           const void* source,
                           size_t size,
-                          scoped_refptr<MessagePipe>* message_pipe,
+                          RefPtr<MessagePipe>* message_pipe,
                           unsigned* port);
 
   // Gets the type of the endpoint (used for assertions, etc.).
   MessagePipeEndpoint::Type GetType(unsigned port);
 
   // These are called by the dispatcher to implement its methods of
   // corresponding names. In all cases, the port |port| must be open.
   void CancelAllAwakables(unsigned port);
   void Close(unsigned port);
   // Unlike |MessagePipeDispatcher::WriteMessage()|, this does not validate its
@@ skipping 54 matching lines @@
   mutable Mutex mutex_;
   std::unique_ptr<MessagePipeEndpoint> endpoints_[2] MOJO_GUARDED_BY(mutex_);
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(MessagePipe);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_MESSAGE_PIPE_H_