Remove CommandBuffer::GetTransferBuffer.

gpu/command_buffer/service/command_buffer_service.h

 // Copyright (c) 2012 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 GPU_COMMAND_BUFFER_SERVICE_COMMAND_BUFFER_SERVICE_H_
 #define GPU_COMMAND_BUFFER_SERVICE_COMMAND_BUFFER_SERVICE_H_
 
 #include "base/callback.h"
 #include "base/memory/shared_memory.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/common/command_buffer_shared.h"
 
 namespace gpu {
 
 class TransferBufferManagerInterface;
 
+class GPU_EXPORT CommandBufferServiceBase : public CommandBuffer {
+ public:
+  // Sets the current get offset. This can be called from any thread.
+  virtual void SetGetOffset(int32 get_offset) = 0;
+
+  // Get the transfer buffer associated with an ID. Returns a null buffer for
+  // ID 0.
+  virtual scoped_refptr<gpu::Buffer> GetTransferBuffer(int32 id) = 0;
+
+  // Allows the reader to update the current token value.
+  virtual void SetToken(int32 token) = 0;
+
+  // Allows the reader to set the current parse error.
+  virtual void SetParseError(error::Error) = 0;
+
+  // Allows the reader to set the current context lost reason.
+  // NOTE: if calling this in conjunction with SetParseError,
+  // call this first.
+  virtual void SetContextLostReason(error::ContextLostReason) = 0;
+};
+
 // An object that implements a shared memory command buffer and a synchronous
 // API to manage the put and get pointers.
-class GPU_EXPORT CommandBufferService : public CommandBuffer {
+class GPU_EXPORT CommandBufferService : public CommandBufferServiceBase {
  public:
   typedef base::Callback<bool(int32)> GetBufferChangedCallback;
   explicit CommandBufferService(
       TransferBufferManagerInterface* transfer_buffer_manager);
   virtual ~CommandBufferService();
 
   // CommandBuffer implementation:
   virtual bool Initialize() OVERRIDE;
   virtual State GetState() OVERRIDE;
   virtual State GetLastState() OVERRIDE;
   virtual int32 GetLastToken() OVERRIDE;
   virtual void Flush(int32 put_offset) OVERRIDE;
   virtual void WaitForTokenInRange(int32 start, int32 end) OVERRIDE;
   virtual void WaitForGetOffsetInRange(int32 start, int32 end) OVERRIDE;
   virtual void SetGetBuffer(int32 transfer_buffer_id) OVERRIDE;
-  virtual void SetGetOffset(int32 get_offset) OVERRIDE;
   virtual scoped_refptr<Buffer> CreateTransferBuffer(size_t size,
                                                      int32* id) OVERRIDE;
   virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
+
+  // CommandBufferServiceBase implementation:
+  virtual void SetGetOffset(int32 get_offset) OVERRIDE;
   virtual scoped_refptr<Buffer> GetTransferBuffer(int32 id) OVERRIDE;
   virtual void SetToken(int32 token) OVERRIDE;
   virtual void SetParseError(error::Error error) OVERRIDE;
   virtual void SetContextLostReason(error::ContextLostReason) OVERRIDE;
 
   // Sets a callback that is called whenever the put offset is changed. When
   // called with sync==true, the callback must not return until some progress
   // has been made (unless the command buffer is empty), i.e. the get offset
   // must have changed. It need not process the entire command buffer though.
   // This allows concurrency between the writer and the reader while giving the
@@ skipping 35 matching lines @@
   uint32 generation_;
   error::Error error_;
   error::ContextLostReason context_lost_reason_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferService);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_COMMAND_BUFFER_SERVICE_H_