New link rel=prerender api, using WebKit::WebPrerenderingPlatform

chrome/browser/prerender/prerender_message_filter.h

+// Copyright (c) 2012 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 CHROME_BROWSER_PRERENDER_PRERENDER_MESSAGE_FILTER_H_
+#define CHROME_BROWSER_PRERENDER_PRERENDER_MESSAGE_FILTER_H_
+
+#include "base/compiler_specific.h"
+#include "content/public/browser/browser_message_filter.h"
+#include "googleurl/src/gurl.h"
+
+class Profile;
+
+namespace content {
+struct Referrer;
+}
+
+namespace gfx {
+class Size;
+}
+
+namespace IPC {
+class Message;
+}
+
+namespace prerender {
+
+class PrerenderMessageFilter : public content::BrowserMessageFilter {
+ public:
+  PrerenderMessageFilter(int render_process_id, Profile* profile);
+
+  virtual bool OnMessageReceived(const IPC::Message& message,
+                                 bool* message_was_ok) OVERRIDE;
+  virtual void OverrideThreadForMessage(
+      const IPC::Message& message,
+      content::BrowserThread::ID* thread) OVERRIDE;
+
+ private:
+  virtual ~PrerenderMessageFilter();
+
+  void OnAddPrerender(int prerender_id,
+                      const GURL& url,
+                      const content::Referrer& referrer,
+                      const gfx::Size& size,
+                      int render_view_route_id);
+  void OnCancelPrerender(int prerender_id);
+  void OnAbandonPrerender(int prerender_id);
+  virtual void OnChannelClosing() OVERRIDE;
+
+  const int render_process_id_;
+  Profile* const profile_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrerenderMessageFilter);
+};
+
+}  // namespace prerender
+
+#endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MESSAGE_FILTER_H_
+