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

Tools/DumpRenderTree/TestNetscapePlugIn/Tests/mac/ContentsScaleFactor.cpp

 /*
  * Copyright (C) 2011 Apple 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 30 matching lines @@
         double contentsScaleFactor = 1.0;
         NPN_GetValue(NPNVcontentsScaleFactor, &contentsScaleFactor);
         return contentsScaleFactor;
     }
 
     double cachedContentsScaleFactor()
     {
         return m_cachedContentsScaleFactor;
     }
 
-    class ScriptableObject : public Object<ScriptableObject> { 
+    class ScriptableObject : public Object<ScriptableObject> {
     public:
         bool hasProperty(NPIdentifier propertyName)
         {
             return identifierIs(propertyName, "contentsScaleFactor")
             || identifierIs(propertyName, "cachedContentsScaleFactor");
         }
 
         bool getProperty(NPIdentifier propertyName, NPVariant* result)
         {
             if (identifierIs(propertyName, "contentsScaleFactor")) {
@@ skipping 16 matching lines @@
     virtual NPError NPP_New(NPMIMEType pluginType, uint16_t mode, int16_t argc, char* argn[], char* argv[], NPSavedData *saved)
     {
         m_cachedContentsScaleFactor = contentsScaleFactor();
         return NPERR_NO_ERROR;
     }
 
     virtual NPError NPP_GetValue(NPPVariable variable, void* value)
     {
         if (variable != NPPVpluginScriptableNPObject)
             return NPERR_GENERIC_ERROR;
-        
+
         *(NPObject**)value = ScriptableObject::create(this);
-        
+
         return NPERR_NO_ERROR;
     }
 
     virtual NPError NPP_SetValue(NPNVariable variable, void* value)
     {
         switch (variable) {
         case NPNVcontentsScaleFactor:
             m_cachedContentsScaleFactor = *(double*)value;
             return NPERR_NO_ERROR;
         default:
             return NPERR_GENERIC_ERROR;
         }
     }
     double m_cachedContentsScaleFactor;
 };
 
 static PluginTest::Register<ContentsScaleFactor> contentsScaleFactor("contents-scale-factor");