Be able to print items that do window.print(); window.close() (airline tix e.g.)

chrome/browser/ui/tab_contents/tab_contents_wrapper.cc

 // Copyright (c) 2011 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/tab_contents/tab_contents_wrapper.h"
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "chrome/browser/autocomplete_history_manager.h"
 #include "chrome/browser/autofill/autofill_manager.h"
@@ skipping 174 matching lines @@
   if (prefs) {
     for (int i = 0; i < kPrefsToObserveLength; ++i)
       pref_change_registrar_.Add(kPrefsToObserve[i], this);
   }
 
   renderer_preferences_util::UpdateFromSystemSettings(
       tab_contents()->GetMutableRendererPrefs(), profile());
 }
 
 TabContentsWrapper::~TabContentsWrapper() {
+  DLOG(ERROR) << "~TabContentsWrapper(" << (void*)this << ')';
+
   in_destructor_ = true;
 
   // Destroy all remaining InfoBars.  It's important to not animate here so that
   // we guarantee that we'll delete all delegates before we do anything else.
   //
   // TODO(pkasting): If there is no InfoBarContainer, this leaks all the
   // InfoBarDelegates.  This will be fixed once we call CloseSoon() directly on
   // Infobars.
   RemoveAllInfoBars(false);
 }
@@ skipping 509 matching lines @@
   if (infobars_.empty()) {
     registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
         Source<NavigationController>(&tab_contents_->controller()));
   }
 }
 
 void TabContentsWrapper::RemoveAllInfoBars(bool animate) {
   while (!infobars_.empty())
     RemoveInfoBarInternal(GetInfoBarDelegateAt(infobar_count() - 1), animate);
 }