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

Source/bindings/v8/custom/V8TrackEventCustom.cpp

 /*
  * Copyright (C) 2011 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 24 matching lines @@
 #include "V8TextTrack.h"
 #include "core/html/track/TrackBase.h"
 #include "core/html/track/TrackEvent.h"
 
 namespace WebCore {
 
 void V8TrackEvent::trackAttrGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TrackEvent* trackEvent = V8TrackEvent::toNative(info.Holder());
     TrackBase* track = trackEvent->track();
-    
+
     if (!track) {
         v8SetReturnValueNull(info);
         return;
     }
 
     switch (track->type()) {
     case TrackBase::BaseTrack:
         // This should never happen.
         ASSERT_NOT_REACHED();
         break;
-        
+
     case TrackBase::TextTrack:
         v8SetReturnValue(info, toV8Fast(static_cast<TextTrack*>(track), info, trackEvent));
         return;
 
     case TrackBase::AudioTrack:
     case TrackBase::VideoTrack:
         // This should not happen until VideoTrack and AudioTrack are implemented.
         ASSERT_NOT_REACHED();
         break;
     }
 
     v8SetReturnValueNull(info);
 }
 
 } // namespace WebCore