Use C++11 range-based loop in core/frame

Source/core/frame/Frame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 91 matching lines @@
     visitor->trace(m_domWindow);
 }
 
 void Frame::detachChildren()
 {
     typedef WillBeHeapVector<RefPtrWillBeMember<Frame> > FrameVector;
     FrameVector childrenToDetach;
     childrenToDetach.reserveCapacity(tree().childCount());
     for (Frame* child = tree().firstChild(); child; child = child->tree().nextSibling())
         childrenToDetach.append(child);
-    FrameVector::iterator end = childrenToDetach.end();
-    for (FrameVector::iterator it = childrenToDetach.begin(); it != end; ++it)
-        (*it)->detach();
+    for (const auto& child : childrenToDetach)
+        child->detach();
 }
 
 FrameHost* Frame::host() const
 {
     return m_host;
 }
 
 Page* Frame::page() const
 {
     if (m_host)
@@ skipping 86 matching lines @@
     }
     m_owner = nullptr;
 }
 
 HTMLFrameOwnerElement* Frame::deprecatedLocalOwner() const
 {
     return m_owner && m_owner->isLocal() ? toHTMLFrameOwnerElement(m_owner) : 0;
 }
 
 } // namespace blink