Remove useless function and typs in the V8Callback

Source/bindings/v8/V8Callback.cpp

 /*
  * Copyright (C) 2012 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 14 matching lines @@
  * 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.
  */
 
 #include "config.h"
 #include "bindings/v8/V8Callback.h"
 
 #include "bindings/v8/ScriptController.h"
-#include "core/dom/Document.h"
 
 namespace WebCore {
 
 bool invokeCallback(ScriptState* scriptState, v8::Local<v8::Function> callback, int argc, v8::Handle<v8::Value> argv[])
 {
     return invokeCallback(scriptState, callback, scriptState->context()->Global(), argc, argv);
 }
 
 bool invokeCallback(ScriptState* scriptState, v8::Local<v8::Function> callback, v8::Handle<v8::Value> thisValue, int argc, v8::Handle<v8::Value> argv[])
 {
     v8::TryCatch exceptionCatcher;
     exceptionCatcher.SetVerbose(true);
     ScriptController::callFunction(scriptState->executionContext(), callback, thisValue, argc, argv, scriptState->isolate());
     return !exceptionCatcher.HasCaught();
 }
 
 } // namespace WebCore