gpu: Remove Create/DeleteImage IPC by adding an X11_PIXMAP_BUFFER GpuMemoryBuffer type.

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 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,
+      unsigned internalformat,
+      unsigned 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,
+      unsigned internalformat,
+      int client_id) = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactory);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_