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_