Remove TabContents from TabStripModelObserver::TabReplacedAt.

chrome/browser/extensions/browser_event_router.cc

 // 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.
 
 #include "chrome/browser/extensions/browser_event_router.h"
 
 #include "base/json/json_writer.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/extension_action/extension_page_actions_api_constants.h"
 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
@@ skipping 457 matching lines @@
   }
 }
 
 void BrowserEventRouter::TabChangedAt(WebContents* contents,
                                       int index,
                                       TabChangeType change_type) {
   TabUpdated(contents, false);
 }
 
 void BrowserEventRouter::TabReplacedAt(TabStripModel* tab_strip_model,
-                                       TabContents* old_contents,
-                                       TabContents* new_contents,
+                                       WebContents* old_contents,
+                                       WebContents* new_contents,
                                        int index) {
-  TabClosingAt(tab_strip_model, old_contents->web_contents(), index);
-  TabInsertedAt(new_contents->web_contents(),
-                index,
-                tab_strip_model->active_index() == index);
+  TabClosingAt(tab_strip_model, old_contents, index);
+  TabInsertedAt(new_contents, index, tab_strip_model->active_index() == index);
 }
 
 void BrowserEventRouter::TabPinnedStateChanged(WebContents* contents,
                                                int index) {
   TabStripModel* tab_strip = NULL;
   int tab_index;
 
   if (ExtensionTabUtil::GetTabStripModel(contents, &tab_strip, &tab_index)) {
     DictionaryValue* changed_properties = new DictionaryValue();
     changed_properties->SetBoolean(tab_keys::kPinnedKey,
@@ skipping 101 matching lines @@
 
     DispatchEventToExtension(profile,
                              extension_action.extension_id(),
                              event_name,
                              args.Pass(),
                              EventRouter::USER_GESTURE_ENABLED);
   }
 }
 
 }  // namespace extensions