Improve GL bindings for Ganesh surfaces.

mojo/skia/ganesh_surface.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 MOJO_SKIA_GANESH_SURFACE_H_
-#define MOJO_SKIA_GANESH_SURFACE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "mojo/gpu/gl_texture.h"
-#include "mojo/skia/ganesh_context.h"
-#include "skia/ext/refptr.h"
-#include "third_party/skia/include/core/SkSurface.h"
-
-namespace mojo {
-
-// This class represents an SkSurface backed by a GL texture, which is
-// appropriate for use with Ganesh. Note: There's a name collision with
-// mojo::Surface, which is a different concept.
-class GaneshSurface {
- public:
-  GaneshSurface(GaneshContext* context, scoped_ptr<GLTexture> texture);
-  ~GaneshSurface();
-
-  SkCanvas* canvas() const { return surface_->getCanvas(); }
-  scoped_ptr<GLTexture> TakeTexture();
-
- private:
-  scoped_ptr<GLTexture> texture_;
-  skia::RefPtr<SkSurface> surface_;
-
-  DISALLOW_COPY_AND_ASSIGN(GaneshSurface);
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_SKIA_GANESH_SURFACE_H_