Remove TabContents from constrained windows.

chrome/browser/ui/constrained_window_tab_helper.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/ui/constrained_window_tab_helper.h"
 
 #include "chrome/browser/ui/constrained_window.h"
 #include "chrome/browser/ui/constrained_window_tab_helper_delegate.h"
-#include "chrome/browser/ui/tab_contents/tab_contents.h"
 #include "chrome/common/render_messages.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 
 using content::WebContents;
 
@@ skipping 85 matching lines @@
   }
 }
 
 void ConstrainedWindowTabHelper::WebContentsDestroyed(WebContents* tab) {
   // First cleanly close all child windows.
   // TODO(mpcomplete): handle case if MaybeCloseChildWindows() already asked
   // some of these to close.  CloseWindows is async, so it might get called
   // twice before it runs.
   CloseConstrainedWindows();
 }