Broadcast a state change notification from the toolbar to the RenderWidgetHos...

chrome/browser/render_widget_host_hwnd.h

 // Copyright (c) 2006-2008 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_RENDER_WIDGET_HOST_CONTAINER_H__
 #define CHROME_BROWSER_RENDER_WIDGET_HOST_CONTAINER_H__
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlcrack.h>
 #include <atlmisc.h>
 
 #include "base/basictypes.h"
 #include "base/gfx/size.h"
 #include "base/scoped_handle.h"
 #include "base/shared_memory.h"
 #include "base/task.h"
 #include "chrome/browser/ime_input.h"
 #include "chrome/browser/render_widget_host_view.h"
+#include "chrome/common/notification_service.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/views/focus_manager.h"
 
 namespace gfx {
 class Rect;
 }
 namespace IPC {
 class Message;
 }
 class RenderWidgetHost;
@@ skipping 16 matching lines @@
 //  Comment excerpted from render_widget_host.h:
 //
 //    "The lifetime of the RenderWidgetHostHWND is tied to the render process.
 //     If the render process dies, the RenderWidgetHostHWND goes away and all
 //     references to it must become NULL."
 //
 class RenderWidgetHostHWND :
   public CWindowImpl<RenderWidgetHostHWND,
                      CWindow,
                      RenderWidgetHostHWNDTraits>,
-  public RenderWidgetHostView {
+  public RenderWidgetHostView,
+  public NotificationObserver {
  public:
   RenderWidgetHostHWND(RenderWidgetHost* render_widget_host);
   virtual ~RenderWidgetHostHWND();
 
   void set_close_on_deactivate(bool close_on_deactivate) {
     close_on_deactivate_ = close_on_deactivate;
   }
 
   void set_parent_hwnd(HWND parent) { parent_hwnd_ = parent; }
 
@@ skipping 104 matching lines @@
   LRESULT OnGetObject(UINT message, WPARAM wparam, LPARAM lparam,
                       BOOL& handled);
   // Handle vertical scrolling
   LRESULT OnVScroll(int code, short position, HWND scrollbar_control);
   // Handle horizontal scrolling
   LRESULT OnHScroll(int code, short position, HWND scrollbar_control);
 
   void OnFinalMessage(HWND window);
 
  private:
+  void Observe(NotificationType type,
+               const NotificationSource& source,
+               const NotificationDetails& details);
+
   // Tells Windows that we want to hear about mouse exit messages.
   void TrackMouseLeave(bool start_tracking);
 
   // Sends a message to the RenderView in the renderer process.
   bool Send(IPC::Message* message);
 
   // Set the tooltip region to the size of the window, creating the tooltip
   // hwnd if it has not been created yet.
   void EnsureTooltip();
 
@@ skipping 71 matching lines @@
   TimeTicks whiteout_start_time_;
 
   // Whether the renderer is made accessible.
   bool renderer_accessible_;
 
   DISALLOW_EVIL_CONSTRUCTORS(RenderWidgetHostHWND);
 };
 
 #endif  // #ifndef CHROME_BROWSER_RENDER_WIDGET_HOST_CONTAINER_H__