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

Source/core/fetch/ResourceLoadPriorityOptimizer.h

 /*
  * Copyright (C) 2013 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 50 matching lines @@
     void updateImageResourcesWithLoadPriority();
 
     struct ResourceAndVisibility {
         ResourceAndVisibility(ImageResource*, VisibilityStatus, uint32_t);
         ~ResourceAndVisibility();
         ResourcePtr<ImageResource> imageResource;
         VisibilityStatus status;
         int screenArea;
     };
 
-    typedef HashMap<unsigned long, OwnPtr<ResourceAndVisibility>, WTF::IntHash<unsigned>, WTF::UnsignedWithZeroKeyHashTraits<unsigned> > ImageResourceMap;
+    typedef HashMap<unsigned long, OwnPtr<ResourceAndVisibility>, WTF::IntHash<unsigned>, WTF::UnsignedWithZeroKeyHashTraits<unsigned>> ImageResourceMap;
     ImageResourceMap m_imageResources;
 
     typedef HashSet<RenderObject*> RenderObjectSet;
     RenderObjectSet m_objects;
 };
 
 }
 
 #endif