Clean up forward declarations in Source/core/inspector

Source/core/inspector/BindingVisitors.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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 12 matching lines @@
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef BindingVisitors_h
 #define BindingVisitors_h
 
 namespace WTF {
-class ArrayBufferView;
 class StringImpl;
 }
 
 namespace blink {
 
 class Node;
 
 class WrappedNodeVisitor {
 public:
     virtual void visitNode(Node*) = 0;
 protected:
     virtual ~WrappedNodeVisitor() { }
 };
 
 class ExternalStringVisitor {
 public:
     virtual void visitJSExternalString(WTF::StringImpl*) = 0;
 protected:
     virtual ~ExternalStringVisitor() { }
 };
 
 } // namespace blink
 
 #endif // BindingVisitors_h