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

mojo/edk/system/platform_handle_dispatcher.h

 // Copyright 2014 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_PLATFORM_HANDLE_DISPATCHER_H_
 #define MOJO_EDK_SYSTEM_PLATFORM_HANDLE_DISPATCHER_H_
 
 #include "mojo/edk/embedder/scoped_platform_handle.h"
+#include "mojo/edk/system/ref_ptr.h"
 #include "mojo/edk/system/simple_dispatcher.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 namespace system {
 
 // A dispatcher that simply wraps/transports a |PlatformHandle| (only for use by
 // the embedder).
 class PlatformHandleDispatcher final : public SimpleDispatcher {
  public:
-  static scoped_refptr<PlatformHandleDispatcher> Create(
+  static RefPtr<PlatformHandleDispatcher> Create(
       embedder::ScopedPlatformHandle platform_handle) {
-    return make_scoped_refptr(
-        new PlatformHandleDispatcher(platform_handle.Pass()));
+    return AdoptRef(new PlatformHandleDispatcher(platform_handle.Pass()));
   }
 
   embedder::ScopedPlatformHandle PassPlatformHandle();
 
   // |Dispatcher| public methods:
   Type GetType() const override;
 
   // The "opposite" of |SerializeAndClose()|. (Typically this is called by
   // |Dispatcher::Deserialize()|.)
-  static scoped_refptr<PlatformHandleDispatcher> Deserialize(
+  static RefPtr<PlatformHandleDispatcher> Deserialize(
       Channel* channel,
       const void* source,
       size_t size,
       embedder::PlatformHandleVector* platform_handles);
 
  private:
   explicit PlatformHandleDispatcher(
       embedder::ScopedPlatformHandle platform_handle);
   ~PlatformHandleDispatcher() override;
 
   // |Dispatcher| protected methods:
   void CloseImplNoLock() override;
-  scoped_refptr<Dispatcher> CreateEquivalentDispatcherAndCloseImplNoLock()
-      override;
+  RefPtr<Dispatcher> CreateEquivalentDispatcherAndCloseImplNoLock() override;
   void StartSerializeImplNoLock(Channel* channel,
                                 size_t* max_size,
                                 size_t* max_platform_handles) override
       MOJO_NOT_THREAD_SAFE;
   bool EndSerializeAndCloseImplNoLock(
       Channel* channel,
       void* destination,
       size_t* actual_size,
       embedder::PlatformHandleVector* platform_handles) override
       MOJO_NOT_THREAD_SAFE;
 
   embedder::ScopedPlatformHandle platform_handle_ MOJO_GUARDED_BY(mutex());
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(PlatformHandleDispatcher);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_PLATFORM_HANDLE_DISPATCHER_H_