Don't send loading completion callbacks for detaching frames.

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2042 matching lines @@
 }
 
 bool WebLocalFrameImpl::isLoading() const {
   if (!frame() || !frame()->document())
     return false;
   return frame()->loader().stateMachine()->isDisplayingInitialEmptyDocument() ||
          frame()->loader().provisionalDocumentLoader() ||
          !frame()->document()->loadEventFinished();
 }
 
-bool WebLocalFrameImpl::
-    isFrameDetachedForSpecialOneOffStopTheCrashingHackBug561873() const {
-  return !frame() || frame()->isDetaching();
-}
-
 bool WebLocalFrameImpl::isNavigationScheduledWithin(
     double intervalInSeconds) const {
   return frame() &&
          frame()->navigationScheduler().isNavigationScheduledWithin(
              intervalInSeconds);
 }
 
 void WebLocalFrameImpl::setCommittedFirstRealLoad() {
   DCHECK(frame());
   ensureFrameLoaderHasCommitted(frame()->loader());
@@ skipping 300 matching lines @@
     feature = UseCounter::ChromeLoadTimesConnectionInfo;
   }
   UseCounter::count(frame(), feature);
 }
 
 WebInputMethodControllerImpl* WebLocalFrameImpl::inputMethodController() const {
   return m_inputMethodController.get();
 }
 
 }  // namespace blink