gpu: Move image creation part of GpuMemoryBufferFactory interface to gpu namespace.

content/common/gpu/gpu_memory_buffer_factory.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 CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
 #define CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace gfx {
 class GLImage;
 }
 
+namespace gpu {
+class ImageFactory;
+}
+
 namespace content {
 
 class GpuMemoryBufferFactory {
  public:
   GpuMemoryBufferFactory() {}
   virtual ~GpuMemoryBufferFactory() {}
 
   // Creates a new platform specific factory instance.
   static scoped_ptr<GpuMemoryBufferFactory> Create();
 
   // Creates a GPU memory buffer instance from |handle|. Whether the storage for
   // the buffer is passed with the handle or allocated as part of buffer
   // creation depends on the type. A valid handle is returned on success.
   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       gfx::GpuMemoryBuffer::Format format,
       gfx::GpuMemoryBuffer::Usage usage) = 0;
 
   // Destroys GPU memory buffer identified by |handle|.
   virtual void DestroyGpuMemoryBuffer(
       const gfx::GpuMemoryBufferHandle& handle) = 0;
 
-  // Creates a GLImage instance for GPU memory buffer identified by |handle|.
-  // |client_id| should be set to the client requesting the creation of instance
-  // and can be used by factory implementation to verify access rights.
-  virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
-      const gfx::GpuMemoryBufferHandle& handle,
-      const gfx::Size& size,
-      gfx::GpuMemoryBuffer::Format format,
-      unsigned internalformat,
-      int client_id) = 0;
+  // Type-checking downcast routine.
+  virtual gpu::ImageFactory* AsImageFactory() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_