1 files changed, 11 insertions, 4 deletions
diff --git a/chrome/browser/tab_contents/render_view_host_delegate_helper.h b/chrome/browser/tab_contents/render_view_host_delegate_helper.h
index e0525fb..a2b2bf6 100644
--- a/chrome/browser/tab_contents/render_view_host_delegate_helper.h
+++ b/chrome/browser/tab_contents/render_view_host_delegate_helper.h
@@ -10,6 +10,8 @@
 
 #include "base/basictypes.h"
 #include "content/browser/webui/web_ui.h"
+#include "content/common/notification_observer.h"
+#include "content/common/notification_registrar.h"
 #include "content/common/window_container_type.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupType.h"
 #include "ui/gfx/rect.h"
@@ -28,7 +30,7 @@ class TabContents;
 
 // Provides helper methods that provide common implementations of some
 // RenderViewHostDelegate::View methods.
-class RenderViewHostDelegateViewHelper {
+class RenderViewHostDelegateViewHelper : public NotificationObserver {
  public:
   RenderViewHostDelegateViewHelper();
   virtual ~RenderViewHostDelegateViewHelper();
@@ -66,10 +68,12 @@ class RenderViewHostDelegateViewHelper {
   // map.
   virtual TabContents* GetCreatedWindow(int route_id);
 
-  // Removes |host| from the internal map of pending RenderWidgets.
-  void RenderWidgetHostDestroyed(RenderWidgetHost* host);
-
  private:
+  // NotificationObserver implementation
+  virtual void Observe(int type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) OVERRIDE;
+
   BackgroundContents* MaybeCreateBackgroundContents(
       int route_id,
       Profile* profile,
@@ -87,6 +91,9 @@ class RenderViewHostDelegateViewHelper {
   typedef std::map<int, RenderWidgetHostView*> PendingWidgetViews;
   PendingWidgetViews pending_widget_views_;
 
+  // Registers and unregisters us for notifications.
+  NotificationRegistrar registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostDelegateViewHelper);
 };