Mojo: Add a platform interface for shared memory (embedder::PlatformSharedBuffer).

mojo/system/core.cc

 // 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.
 
 #include "mojo/system/core.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/time/time.h"
+#include "mojo/embedder/platform_shared_buffer.h"
 #include "mojo/public/c/system/macros.h"
 #include "mojo/system/constants.h"
 #include "mojo/system/data_pipe.h"
 #include "mojo/system/data_pipe_consumer_dispatcher.h"
 #include "mojo/system/data_pipe_producer_dispatcher.h"
 #include "mojo/system/dispatcher.h"
 #include "mojo/system/handle_signals_state.h"
 #include "mojo/system/local_data_pipe.h"
 #include "mojo/system/memory.h"
 #include "mojo/system/message_pipe.h"
 #include "mojo/system/message_pipe_dispatcher.h"
-#include "mojo/system/raw_shared_buffer.h"
 #include "mojo/system/shared_buffer_dispatcher.h"
 #include "mojo/system/waiter.h"
 
 namespace mojo {
 namespace system {
 
 // Implementation notes
 //
 // Mojo primitives are implemented by the singleton |Core| object. Most calls
 // are for a "primary" handle (the first argument). |Core::GetDispatcher()| is
@@ skipping 476 matching lines @@
 
 MojoResult Core::MapBuffer(MojoHandle buffer_handle,
                            uint64_t offset,
                            uint64_t num_bytes,
                            UserPointer<void*> buffer,
                            MojoMapBufferFlags flags) {
   scoped_refptr<Dispatcher> dispatcher(GetDispatcher(buffer_handle));
   if (!dispatcher)
     return MOJO_RESULT_INVALID_ARGUMENT;
 
-  scoped_ptr<RawSharedBufferMapping> mapping;
+  scoped_ptr<embedder::PlatformSharedBufferMapping> mapping;
   MojoResult result = dispatcher->MapBuffer(offset, num_bytes, flags, &mapping);
   if (result != MOJO_RESULT_OK)
     return result;
 
   DCHECK(mapping);
-  void* address = mapping->base();
+  void* address = mapping->GetBase();
   {
     base::AutoLock locker(mapping_table_lock_);
     result = mapping_table_.AddMapping(mapping.Pass());
   }
   if (result != MOJO_RESULT_OK)
     return result;
 
   buffer.Put(address);
   return MOJO_RESULT_OK;
 }
@@ skipping 58 matching lines @@
   if (signals_states) {
     for (; i < num_handles; i++)
       signals_states[i] = dispatchers[i]->GetHandleSignalsState();
   }
 
   return rv;
 }
 
 }  // namespace system
 }  // namespace mojo