Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core)

Source/bindings/v8/custom/V8NodeListCustom.cpp

 /*
  * Copyright (C) 2007-2009 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 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 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.
  */
 
 #include "config.h"
-#include "V8NodeList.h" 
+#include "V8NodeList.h"
 
 #include "V8Node.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8GCController.h"
 #include "core/dom/LiveNodeList.h"
 #include "core/dom/NodeList.h"
 
 #include "wtf/RefPtr.h"
 #include "wtf/StdLibExtras.h"
 
 namespace WebCore {
 
 void* V8NodeList::opaqueRootForGC(void* object, v8::Isolate* isolate)
 {
     NodeList* impl = static_cast<NodeList*>(object);
     if (!impl->isLiveNodeList())
         return object;
     Node* owner = static_cast<LiveNodeList*>(impl)->ownerNode();
     if (!owner)
         return object;
     return V8GCController::opaqueRootForGC(owner, isolate);
 }
 
 } // namespace WebCore