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

mojo/edk/system/data_pipe_producer_dispatcher.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_DATA_PIPE_PRODUCER_DISPATCHER_H_
 #define MOJO_EDK_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_
 
 #include "base/memory/ref_counted.h"
 #include "mojo/edk/system/dispatcher.h"
+#include "mojo/edk/system/ref_ptr.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 namespace system {
 
 class DataPipe;
 
 // This is the |Dispatcher| implementation for the producer handle for data
 // pipes (created by the Mojo primitive |MojoCreateDataPipe()|). This class is
 // thread-safe.
 class DataPipeProducerDispatcher final : public Dispatcher {
  public:
   static scoped_refptr<DataPipeProducerDispatcher> Create() {
     return make_scoped_refptr(new DataPipeProducerDispatcher());
   }
 
   // Must be called before any other methods.
-  void Init(scoped_refptr<DataPipe> data_pipe) MOJO_NOT_THREAD_SAFE;
+  void Init(RefPtr<DataPipe>&& data_pipe) MOJO_NOT_THREAD_SAFE;
 
   // |Dispatcher| public methods:
   Type GetType() const override;
 
   // The "opposite" of |SerializeAndClose()|. (Typically this is called by
   // |Dispatcher::Deserialize()|.)
   static scoped_refptr<DataPipeProducerDispatcher>
   Deserialize(Channel* channel, const void* source, size_t size);
 
   // Get access to the |DataPipe| for testing.
@@ skipping 28 matching lines @@
       MOJO_NOT_THREAD_SAFE;
   bool EndSerializeAndCloseImplNoLock(
       Channel* channel,
       void* destination,
       size_t* actual_size,
       embedder::PlatformHandleVector* platform_handles) override
       MOJO_NOT_THREAD_SAFE;
   bool IsBusyNoLock() const override;
 
   // This will be null if closed.
-  scoped_refptr<DataPipe> data_pipe_ MOJO_GUARDED_BY(mutex());
+  RefPtr<DataPipe> data_pipe_ MOJO_GUARDED_BY(mutex());
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(DataPipeProducerDispatcher);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_