Remove trace frame template specialization.

third_party/WebKit/Source/web/OpenedFrameTracker.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef OpenedFrameTracker_h
 #define OpenedFrameTracker_h
 
 #include "wtf/HashSet.h"
 #include "wtf/Noncopyable.h"
 
@@ skipping 16 matching lines @@
   void add(WebFrame*);
   void remove(WebFrame*);
 
   // Helper used when swapping a frame into the frame tree: this updates the
   // opener for opened frames to point to the new frame being swapped in.
   void transferTo(WebFrame*);
 
   void traceFrames(Visitor*);
 
  private:
-  template <typename VisitorDispatcher>
-  void traceFramesImpl(VisitorDispatcher);
-
   WTF::HashSet<WebFrame*> m_openedFrames;
 };
 
 }  // namespace blink
 
 #endif  // WebFramePrivate_h