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

mojo/system/shared_buffer_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_SYSTEM_SHARED_BUFFER_DISPATCHER_H_
 #define MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_
 
 #include "base/macros.h"
+#include "mojo/embedder/platform_shared_buffer.h"
 #include "mojo/system/memory.h"
-#include "mojo/system/raw_shared_buffer.h"
 #include "mojo/system/simple_dispatcher.h"
 #include "mojo/system/system_impl_export.h"
 
 namespace mojo {
 namespace system {
 
 // TODO(vtl): We derive from SimpleDispatcher, even though we don't currently
 // have anything that's waitable. I want to add a "transferrable" wait flag
 // (which would entail overriding |GetHandleSignalsStateImplNoLock()|, etc.).
 class MOJO_SYSTEM_IMPL_EXPORT SharedBufferDispatcher : public SimpleDispatcher {
@@ skipping 25 matching lines @@
   // The "opposite" of |SerializeAndClose()|. (Typically this is called by
   // |Dispatcher::Deserialize()|.)
   static scoped_refptr<SharedBufferDispatcher> Deserialize(
       Channel* channel,
       const void* source,
       size_t size,
       embedder::PlatformHandleVector* platform_handles);
 
  private:
   explicit SharedBufferDispatcher(
-      scoped_refptr<RawSharedBuffer> shared_buffer_);
+      scoped_refptr<embedder::PlatformSharedBuffer> shared_buffer_);
   virtual ~SharedBufferDispatcher();
 
   // Validates and/or sets default options for
   // |MojoDuplicateBufferHandleOptions|. If non-null, |in_options| must point to
   // a struct of at least |in_options->struct_size| bytes. |out_options| must
   // point to a (current) |MojoDuplicateBufferHandleOptions| and will be
   // entirely overwritten on success (it may be partly overwritten on failure).
   static MojoResult ValidateDuplicateOptions(
       UserPointer<const MojoDuplicateBufferHandleOptions> in_options,
       MojoDuplicateBufferHandleOptions* out_options);
 
   // |Dispatcher| protected methods:
   virtual void CloseImplNoLock() OVERRIDE;
   virtual scoped_refptr<Dispatcher>
       CreateEquivalentDispatcherAndCloseImplNoLock() OVERRIDE;
   virtual MojoResult DuplicateBufferHandleImplNoLock(
       UserPointer<const MojoDuplicateBufferHandleOptions> options,
       scoped_refptr<Dispatcher>* new_dispatcher) OVERRIDE;
   virtual MojoResult MapBufferImplNoLock(
       uint64_t offset,
       uint64_t num_bytes,
       MojoMapBufferFlags flags,
-      scoped_ptr<RawSharedBufferMapping>* mapping) OVERRIDE;
+      scoped_ptr<embedder::PlatformSharedBufferMapping>* mapping) OVERRIDE;
   virtual void StartSerializeImplNoLock(Channel* channel,
                                         size_t* max_size,
                                         size_t* max_platform_handles) OVERRIDE;
   virtual bool EndSerializeAndCloseImplNoLock(
       Channel* channel,
       void* destination,
       size_t* actual_size,
       embedder::PlatformHandleVector* platform_handles) OVERRIDE;
 
-  scoped_refptr<RawSharedBuffer> shared_buffer_;
+  scoped_refptr<embedder::PlatformSharedBuffer> shared_buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedBufferDispatcher);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_