Replacing allocate bitmap IPC messages with a new Mojo interface.

content/browser/renderer_host/render_message_filter.h

Index: content/browser/renderer_host/render_message_filter.h
diff --git a/content/browser/renderer_host/render_message_filter.h b/content/browser/renderer_host/render_message_filter.h
index 137e7f9cf63ffd7dab27837da66fd821c0d6ba15..0f97132be6abfa78f4be608d79499cc0e20297cd 100644
--- a/content/browser/renderer_host/render_message_filter.h
+++ b/content/browser/renderer_host/render_message_filter.h
@@ -135,6 +135,9 @@ class CONTENT_EXPORT RenderMessageFilter
   void CreateFullscreenWidget(
       int opener_id,
       const CreateFullscreenWidgetCallback& callback) override;
+  void AllocatedSharedBitmap(mojo::ScopedSharedBufferHandle buffer,
+                             const cc::SharedBitmapId& id) override;
+  void DeletedSharedBitmap(const cc::SharedBitmapId& id) override;
 
   // Message handlers called on the browser IO thread:
   void OnEstablishGpuChannel(IPC::Message* reply);
@@ -146,19 +149,6 @@ class CONTENT_EXPORT RenderMessageFilter
   void GetGpuProcessHandlesCallback(
       std::unique_ptr<IPC::Message> reply,
       const std::list<base::ProcessHandle>& handles);
-  // Used to ask the browser to allocate a block of shared memory for the
-  // renderer to send back data in, since shared memory can't be created
-  // in the renderer on POSIX due to the sandbox.
-  void AllocateSharedBitmapOnFileThread(uint32_t buffer_size,
-                                        const cc::SharedBitmapId& id,
-                                        IPC::Message* reply_msg);
-  void OnAllocateSharedBitmap(uint32_t buffer_size,
-                              const cc::SharedBitmapId& id,
-                              IPC::Message* reply_msg);
-  void OnAllocatedSharedBitmap(size_t buffer_size,
-                               const base::SharedMemoryHandle& handle,
-                               const cc::SharedBitmapId& id);
-  void OnDeletedSharedBitmap(const cc::SharedBitmapId& id);
   void OnResolveProxy(const GURL& url, IPC::Message* reply_msg);
 
   // Browser side discardable shared memory allocation.