Removing the dependency of command-buffer client on base/task.h. This file in...

gpu/command_buffer/common/command_buffer.h

 // Copyright (c) 2009 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_COMMON_COMMAND_BUFFER_H_
 #define GPU_COMMAND_BUFFER_COMMON_COMMAND_BUFFER_H_
 
-#include "base/task.h"
+#include "base/basictypes.h"
 #include "gpu/command_buffer/common/buffer.h"
 
 namespace gpu {
 
 // Common interface for CommandBuffer implementations.
 class CommandBuffer {
  public:
   CommandBuffer() {
   }
 
@@ skipping 16 matching lines @@
 
   // Returns the current get offset. This can be called from any thread.
   virtual int32 GetGetOffset() = 0;
 
   // Sets the current get offset. This can be called from any thread.
   virtual void SetGetOffset(int32 get_offset) = 0;
 
   // Returns the current put offset. This can be called from any thread.
   virtual int32 GetPutOffset() = 0;
 
-  // Sets a callback that should be posted on another thread whenever the put
-  // offset is changed. 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 writer a means of waiting for the reader to make some
-  // progress before attempting to write more to the command buffer. Avoiding
-  // the use of a synchronization primitive like a condition variable to
-  // synchronize reader and writer reduces the risk of deadlock.
-  // Takes ownership of callback. The callback is invoked on the plugin thread.
-  virtual void SetPutOffsetChangeCallback(Callback0::Type* callback) = 0;
-
   // Create a transfer buffer and return a handle that uniquely
   // identifies it or -1 on error.
   virtual int32 CreateTransferBuffer(size_t size) = 0;
 
   // Destroy a transfer buffer and recycle the handle.
   virtual void DestroyTransferBuffer(int32 id) = 0;
 
   // Get the transfer buffer associated with a handle.
   virtual Buffer GetTransferBuffer(int32 handle) = 0;
 
@@ skipping 21 matching lines @@
   // command buffer cannot recover and ceases to process commands.
   virtual void RaiseErrorStatus() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CommandBuffer);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_COMMAND_BUFFER_H_