ozone: Implement zero/one-copy texture for Ozone GBM.

ui/ozone/gpu/gpu_memory_buffer_factory_ozone_native_buffer.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 UI_OZONE_GPU_GPU_MEMORY_BUFFER_FACTORY_OZONE_NATIVE_BUFFER_H_
 #define UI_OZONE_GPU_GPU_MEMORY_BUFFER_FACTORY_OZONE_NATIVE_BUFFER_H_
 
 #include <map>
 
 #include "base/memory/ref_counted.h"
@@ skipping 14 matching lines @@
 class OZONE_GPU_EXPORT GpuMemoryBufferFactoryOzoneNativeBuffer {
   typedef std::map<std::pair<uint32_t, uint32_t>, scoped_refptr<NativePixmap> >
       BufferToPixmapMap;
 
  public:
   GpuMemoryBufferFactoryOzoneNativeBuffer();
   virtual ~GpuMemoryBufferFactoryOzoneNativeBuffer();
 
   // Creates a GPU memory buffer identified by |id|.
   // It can be called on any thread.
-  bool CreateGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
-                             const gfx::Size& size,
-                             gfx::GpuMemoryBuffer::Format format,
-                             gfx::GpuMemoryBuffer::Usage usage,
-                             int client_id,
-                             gfx::PluginWindowHandle surface_handle);
+  gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
+      gfx::GpuMemoryBufferId id,
+      const gfx::Size& size,
+      gfx::GpuMemoryBuffer::Format format,
+      gfx::GpuMemoryBuffer::Usage usage,
+      int client_id,
+      gfx::PluginWindowHandle surface_handle);
 
   // Destroys GPU memory buffer identified by |id|.
   // It can be called on any thread.
   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
 
   // Creates a GLImage instance for GPU memory buffer identified by |id|.
   scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
       gfx::GpuMemoryBufferId id,
       const gfx::Size& size,
       gfx::GpuMemoryBuffer::Format format,
       unsigned internalformat,
       int client_id);
 
   static scoped_refptr<gfx::GLImage> CreateImageForPixmap(
       scoped_refptr<NativePixmap> pixmap,
       const gfx::Size& size,
       gfx::GpuMemoryBuffer::Format format,
       unsigned internalformat);
 
  private:
   BufferToPixmapMap native_pixmap_map_;
   base::Lock native_pixmap_map_lock_;
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_GPU_GPU_MEMORY_BUFFER_FACTORY_OZONE_NATIVE_BUFFER_H_