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

Source/bindings/v8/DOMWrapperWorld.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:
  *
  *     * 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 70 matching lines @@
     // main world's.
     //
     // FIXME: Right now, resource injection simply bypasses the main world's
     // DOM. More work is necessary to allow the isolated world's policy to be
     // applied correctly.
     static void setIsolatedWorldContentSecurityPolicy(int worldID, const String& policy);
     static void clearIsolatedWorldContentSecurityPolicy(int worldID);
     bool isolatedWorldHasContentSecurityPolicy();
 
     // Associate a logger with the world identified by worldId (worlId may be 0
-    // identifying the main world).  
+    // identifying the main world).
     static void setActivityLogger(int worldId, PassOwnPtr<V8DOMActivityLogger>);
     static V8DOMActivityLogger* activityLogger(int worldId);
 
     bool isMainWorld() const { return m_worldId == mainWorldId; }
     bool isIsolatedWorld() const { return isIsolatedWorldId(m_worldId); }
 
     int worldId() const { return m_worldId; }
     int extensionGroup() const { return m_extensionGroup; }
     DOMDataStore* isolatedWorldDOMDataStore() const
     {
@@ skipping 20 matching lines @@
 
 DOMWrapperWorld* mainThreadNormalWorld();
 
 // FIXME: this is a workaround for a problem in ScriptController
 // Do not use this anywhere else!!
 DOMWrapperWorld* existingWindowShellWorkaroundWorld();
 
 } // namespace WebCore
 
 #endif // DOMWrapperWorld_h