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

Source/core/frame/LocalDOMWindow.cpp

Index: Source/core/frame/LocalDOMWindow.cpp
diff --git a/Source/core/frame/LocalDOMWindow.cpp b/Source/core/frame/LocalDOMWindow.cpp
index faff8fb2b9f7106d730abacd926d91210639bfab..7730623c1b06056d7f6f1ccdb376b26340ec4c8f 100644
--- a/Source/core/frame/LocalDOMWindow.cpp
+++ b/Source/core/frame/LocalDOMWindow.cpp
@@ -551,14 +551,14 @@ void LocalDOMWindow::willDetachFrameHost()
 
 void LocalDOMWindow::willDestroyDocumentInFrame()
 {
-    for (WillBeHeapHashSet<RawPtrWillBeWeakMember<DOMWindowProperty> >::const_iterator it = m_properties.begin(); it != m_properties.end(); ++it)
-        (*it)->willDestroyGlobalObjectInFrame();
+    for (const auto& domWindowProperty : m_properties)
+        domWindowProperty->willDestroyGlobalObjectInFrame();
 }
 
 void LocalDOMWindow::willDetachDocumentFromFrame()
 {
-    for (WillBeHeapHashSet<RawPtrWillBeWeakMember<DOMWindowProperty> >::const_iterator it = m_properties.begin(); it != m_properties.end(); ++it)
-        (*it)->willDetachGlobalObjectFromFrame();
+    for (const auto& domWindowProperty : m_properties)
+        domWindowProperty->willDetachGlobalObjectFromFrame();
 }
 
 void LocalDOMWindow::registerProperty(DOMWindowProperty* property)