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

Source/bindings/v8/V8ValueCache.h

 /*
  * Copyright (C) 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 38 matching lines @@
 
     template <class T>
     void setReturnValueFromString(const T& info, StringImpl* stringImpl, v8::Isolate* isolate)
     {
         if (m_lastStringImpl.get() == stringImpl && m_lastV8String.isWeak())
             info.GetReturnValue().Set(*m_lastV8String.persistent());
         else
             setReturnValueFromStringSlow(info, stringImpl, isolate);
     }
 
-    void clearOnGC() 
+    void clearOnGC()
     {
         m_lastStringImpl = 0;
         m_lastV8String.clear();
     }
 
     void remove(StringImpl*);
 
 private:
     static v8::Local<v8::String> makeExternalString(const String&);
     static void makeWeakCallback(v8::Isolate*, v8::Persistent<v8::String>*, StringImpl*);
@@ skipping 29 matching lines @@
     UnsafePersistent<v8::String> m_lastV8String;
     // Note: RefPtr is a must as we cache by StringImpl* equality, not identity
     // hence lastStringImpl might be not a key of the cache (in sense of identity)
     // and hence it's not refed on addition.
     RefPtr<StringImpl> m_lastStringImpl;
 };
 
 } // namespace WebCore
 
 #endif // V8ValueCache_h