Browser Plugin: Implement Back, Forward, and Go.

content/browser/browser_plugin/browser_plugin_guest.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.
 
 // A BrowserPluginGuest represents the browser side of browser <--> renderer
 // communication. A BrowserPlugin (a WebPlugin) is on the renderer side of
 // browser <--> guest renderer communication. The 'guest' renderer is a
 // <browser> tag.
 //
 // BrowserPluginGuest lives on the UI thread of the browser process. It has a
@@ skipping 127 matching lines @@
   // embedder) instead of default view/widget host.
   void HandleInputEventAck(RenderViewHost* render_view_host, bool handled);
 
   // Helper to send messages to embedder. Overridden in test implementation
   // since we want to intercept certain messages for testing.
   virtual void SendMessageToEmbedder(IPC::Message* msg);
   // Overridden in tests.
   virtual void SetFocus(bool focused);
   // Overridden in tests.
   virtual bool ViewTakeFocus(bool reverse);
+  virtual void Back();
+  virtual void Forward();
+  virtual void Go(int relative_index);
 
   // Static factory instance (always NULL for non-test).
   static content::BrowserPluginHostFactory* factory_;
 
   RenderProcessHost* embedder_render_process_host_;
   // An identifier that uniquely identifies a browser plugin guest within an
   // embedder.
   int instance_id_;
   scoped_ptr<TransportDIB> damage_buffer_;
 #if defined(OS_WIN)
   size_t damage_buffer_size_;
 #endif
   gfx::Size damage_view_size_;
   float damage_buffer_scale_factor_;
   scoped_ptr<IPC::Message> pending_input_event_reply_;
   gfx::Rect guest_rect_;
   WebCursor cursor_;
   IDMap<RenderViewHost> pending_updates_;
   int pending_update_counter_;
   base::TimeDelta guest_hang_timeout_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_