Revert 244383 "Use ContextProvider subclass to provide WGC3D poi..."

trunk/src/content/renderer/webgraphicscontext3d_provider_impl.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_RENDERER_WEBGRAPHICSCONTEXT3D_PROVIDER_IMPL_H_
-#define CONTENT_RENDERER_WEBGRAPHICSCONTEXT3D_PROVIDER_IMPL_H_
-
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "content/common/content_export.h"
-#include "third_party/WebKit/public/platform/WebGraphicsContext3DProvider.h"
-
-namespace webkit {
-namespace gpu {
-class ContextProviderWebContext;
-}  // namespace webkit
-}  // namespace gpu
-
-namespace content {
-
-class CONTENT_EXPORT WebGraphicsContext3DProviderImpl
-    : public NON_EXPORTED_BASE(blink::WebGraphicsContext3DProvider) {
- public:
-  explicit WebGraphicsContext3DProviderImpl(
-      scoped_refptr<webkit::gpu::ContextProviderWebContext> provider);
-  virtual ~WebGraphicsContext3DProviderImpl();
-
-  // WebGraphicsContext3DProvider implementation.
-  virtual blink::WebGraphicsContext3D* context3d() OVERRIDE;
-  virtual GrContext* grContext() OVERRIDE;
-
- private:
-  scoped_refptr<webkit::gpu::ContextProviderWebContext> provider_;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_WEBGRAPHICSCONTEXT3D_PROVIDER_IMPL_H_