We have a problem in the process on destroying WebContentsImpl because

chrome/browser/ui/passwords/manage_passwords_bubble_ui_controller.cc

 // Copyright 2013 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/ui/passwords/manage_passwords_bubble_ui_controller.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/password_manager/password_store_factory.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
@@ skipping 70 matching lines @@
 }
 
 void ManagePasswordsBubbleUIController::OnBlacklistBlockedAutofill() {
   manage_passwords_icon_to_be_shown_ = true;
   password_to_be_saved_ = false;
   manage_passwords_bubble_needs_showing_ = false;
   autofill_blocked_ = true;
   UpdateBubbleAndIconVisibility();
 }
 
-void ManagePasswordsBubbleUIController::WebContentsDestroyed(
-    content::WebContents* web_contents) {
+void ManagePasswordsBubbleUIController::WebContentsDestroyed() {
   password_manager::PasswordStore* password_store =
-      GetPasswordStore(web_contents);
+      GetPasswordStore(web_contents());
   if (password_store)
     password_store->RemoveObserver(this);
 }
 
 void ManagePasswordsBubbleUIController::OnLoginsChanged(
     const password_manager::PasswordStoreChangeList& changes) {
   for (password_manager::PasswordStoreChangeList::const_iterator it =
            changes.begin();
        it != changes.end();
        it++) {
@@ skipping 62 matching lines @@
     state = ManagePasswordsIcon::MANAGE_STATE;
 
   icon->SetState(state);
 
   if (manage_passwords_bubble_needs_showing_) {
     DCHECK(state == ManagePasswordsIcon::PENDING_STATE);
     icon->ShowBubbleWithoutUserInteraction();
     manage_passwords_bubble_needs_showing_ = false;
   }
 }