Create RenderFrame/RenderFrameHost for the main frame of a page.

content/public/renderer/render_frame.h

Index: content/public/renderer/render_frame.h
diff --git a/content/public/renderer/render_frame.h b/content/public/renderer/render_frame.h
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index 0000000000000000000000000000000000000000..5c8b16cf34097cc5106aa62c43ed00c878a3dfda
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+++ b/content/public/renderer/render_frame.h
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+// Copyright (c) 2013 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_PUBLIC_RENDERER_RENDER_FRAME_H_
+#define CONTENT_PUBLIC_RENDERER_RENDER_FRAME_H_
+
+#include "content/common/content_export.h"
+#include "ipc/ipc_listener.h"
+#include "ipc/ipc_sender.h"
+
+namespace content {
+
+// This interface wraps functionality, which is specific to frames, such as
+// navigation. It provides communication with a corresponding RenderFrameHost
+// in the browser process.
+class CONTENT_EXPORT RenderFrame : public IPC::Listener,
+                                   public IPC::Sender {
+ protected:
+  virtual ~RenderFrame() {}
+
+ private:
+  // This interface should only be implemented inside content.
+  friend class RenderFrameImpl;
+  RenderFrame() {}
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_RENDERER_RENDER_FRAME_H_