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

content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h

Index: content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h b/content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h
index f72f344e5f74c51bf4b5392a72019ceb78081d93..34bf2e6c6ea38d17408caff1a2f20623ff76b75c 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h
@@ -7,6 +7,12 @@
 
 #include "content/common/gpu/client/gpu_memory_buffer_impl.h"
 
+namespace ui {
+
+class ClientNativePixmap;
+
+}  // namespace ui
+
 namespace content {
 
 // Implementation of GPU memory buffer based on Ozone native pixmap.
@@ -18,6 +24,7 @@ class GpuMemoryBufferImplOzoneNativePixmap : public GpuMemoryBufferImpl {
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       const DestructionCallback& callback);
+  ~GpuMemoryBufferImplOzoneNativePixmap() override;
 
   // Overridden from gfx::GpuMemoryBuffer:
   bool Map(void** data) override;
@@ -29,8 +36,13 @@ class GpuMemoryBufferImplOzoneNativePixmap : public GpuMemoryBufferImpl {
   GpuMemoryBufferImplOzoneNativePixmap(gfx::GpuMemoryBufferId id,
                                        const gfx::Size& size,
                                        gfx::BufferFormat format,
+                                       gfx::BufferUsage usage,
                                        const DestructionCallback& callback);
-  ~GpuMemoryBufferImplOzoneNativePixmap() override;
+
+  bool Initialize(const gfx::GpuMemoryBufferHandle& handle);
+
+  scoped_ptr<ui::ClientNativePixmap> pixmap_;
+  gfx::BufferUsage usage_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplOzoneNativePixmap);
 };