Revert of Mandoline: Add WebGL support

components/html_viewer/web_graphics_context_3d_command_buffer_impl.h

-// Copyright 2015 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 COMPONENTS_HTML_VIEWER_WEB_GRAPHICS_CONTEXT_3D_COMMAND_BUFFER_IMPL_H_
-#define COMPONENTS_HTML_VIEWER_WEB_GRAPHICS_CONTEXT_3D_COMMAND_BUFFER_IMPL_H_
-
-#include "base/macros.h"
-#include "gpu/blink/webgraphicscontext3d_impl.h"
-#include "mojo/public/c/gles2/gles2.h"
-#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-#include "third_party/mojo/src/mojo/public/cpp/system/core.h"
-#include "third_party/mojo/src/mojo/public/cpp/system/message_pipe.h"
-#include "url/gurl.h"
-
-namespace gpu {
-  class ContextSupport;
-  namespace gles2 { class GLES2Interface; }
-}
-
-namespace mojo {
-class ApplicationImpl;
-}  // namespace mojo
-
-namespace html_viewer {
-
-class WebGraphicsContext3DCommandBufferImpl
-    : public gpu_blink::WebGraphicsContext3DImpl {
- public:
-  WebGraphicsContext3DCommandBufferImpl(
-      mojo::ApplicationImpl* app,
-      const GURL& active_url,
-      const blink::WebGraphicsContext3D::Attributes& attributes,
-      blink::WebGraphicsContext3D* share_context,
-      blink::WebGLInfo* gl_info);
-  virtual ~WebGraphicsContext3DCommandBufferImpl();
-
-  static WebGraphicsContext3DCommandBufferImpl* CreateOffscreenContext(
-      mojo::ApplicationImpl* app,
-      const GURL& active_url,
-      const blink::WebGraphicsContext3D::Attributes& attributes,
-      blink::WebGraphicsContext3D* share_context,
-      blink::WebGLInfo* gl_info);
-
- private:
-  static void ContextLostThunk(void* closure) {
-    static_cast<WebGraphicsContext3DCommandBufferImpl*>(closure)->ContextLost();
-  }
-  void ContextLost();
-
-  mojo::ScopedMessagePipeHandle command_buffer_handle_;
-  MojoGLES2Context gles2_context_;
-  scoped_ptr<gpu::gles2::GLES2Interface> context_gl_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebGraphicsContext3DCommandBufferImpl);
-};
-
-}  // namespace html_viewer
-
-#endif  // COMPONENTS_HTML_VIEWER_WEB_GRAPHICS_CONTEXT_3D_COMMAND_BUFFER_IMPL_H_