Fix template angle bracket syntax in dom

Source/core/dom/MutationObserver.h

 /*
  * Copyright (C) 2011 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 76 matching lines @@
     ~MutationObserver();
 
     void observe(Node*, const MutationObserverInit&, ExceptionState&);
     MutationRecordVector takeRecords();
     void disconnect();
     void observationStarted(MutationObserverRegistration*);
     void observationEnded(MutationObserverRegistration*);
     void enqueueMutationRecord(PassRefPtrWillBeRawPtr<MutationRecord>);
     void setHasTransientRegistration();
 
-    WillBeHeapHashSet<RawPtrWillBeMember<Node> > getObservedNodes() const;
+    WillBeHeapHashSet<RawPtrWillBeMember<Node>> getObservedNodes() const;
 
     DECLARE_TRACE();
 
 private:
     struct ObserverLessThan;
 
     explicit MutationObserver(PassOwnPtrWillBeRawPtr<MutationCallback>);
     void deliver();
     bool shouldBeSuspended() const;
 
     void dispose();
 
     OwnPtrWillBeMember<MutationCallback> m_callback;
     MutationRecordVector m_records;
     MutationObserverRegistrationSet m_registrations;
     unsigned m_priority;
 };
 
 } // namespace blink
 
 #endif // MutationObserver_h