GPU: Buld most of the gpu as a single DLL.

gpu/command_buffer/client/ring_buffer.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.
 
 // This file contains the definition of the RingBuffer class.
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_RING_BUFFER_H_
 #define GPU_COMMAND_BUFFER_CLIENT_RING_BUFFER_H_
 
 #include <deque>
+
+#include "../../gpu_export.h"
 #include "../common/logging.h"
 #include "../common/types.h"
 
 namespace gpu {
 class CommandBufferHelper;
 
 // RingBuffer manages a piece of memory as a ring buffer. Memory is allocated
 // with Alloc and then a is freed pending a token with FreePendingToken.  Old
 // allocations must not be kept past new allocations.
-class RingBuffer {
+class GPU_EXPORT RingBuffer {
  public:
   typedef unsigned int Offset;
 
   // Creates a RingBuffer.
   // Parameters:
   //   base_offset: The offset of the start of the buffer.
   //   size: The size of the buffer in bytes.
   //   helper: A CommandBufferHelper for dealing with tokens.
   RingBuffer(
       Offset base_offset, unsigned int size, CommandBufferHelper* helper);
@@ skipping 156 matching lines @@
 
  private:
   RingBuffer allocator_;
   void* base_;
   DISALLOW_IMPLICIT_CONSTRUCTORS(RingBufferWrapper);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_RING_BUFFER_H_