Change extension unload notification to indicate updates....

chrome/browser/tabs/tab_strip_model.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/tabs/tab_strip_model.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/stl_util-inl.h"
@@ skipping 760 matching lines @@
       int index = GetWrapperIndex(Source<TabContents>(source).ptr());
       if (index != TabStripModel::kNoTab) {
         // Note that we only detach the contents here, not close it - it's
         // already been closed. We just want to undo our bookkeeping.
         DetachTabContentsAt(index);
       }
       break;
     }
 
     case NotificationType::EXTENSION_UNLOADED: {
-      const Extension* extension = Details<const Extension>(details).ptr();
+      const Extension* extension =
+          Details<UnloadedExtensionInfo>(details)->extension;
       // Iterate backwards as we may remove items while iterating.
       for (int i = count() - 1; i >= 0; i--) {
         TabContentsWrapper* contents = GetTabContentsAt(i);
         if (contents->extension_app() == extension) {
           // The extension an app tab was created from has been nuked. Delete
           // the TabContents. Deleting a TabContents results in a notification
           // of type TAB_CONTENTS_DESTROYED; we do the necessary cleanup in
           // handling that notification.
 
           InternalCloseTab(contents, i, false);
@@ skipping 211 matching lines @@
   FOR_EACH_OBSERVER(TabStripModelObserver, observers_,
                     TabMoved(moved_data->contents, index, to_position));
 }
 
 // static
 bool TabStripModel::OpenerMatches(const TabContentsData* data,
                                   const NavigationController* opener,
                                   bool use_group) {
   return data->opener == opener || (use_group && data->group == opener);
 }