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

Source/modules/webaudio/AudioScheduledSourceNode.cpp

 /*
  * Copyright (C) 2012, 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 131 matching lines @@
 
     m_startTime = when;
     m_playbackState = SCHEDULED_STATE;
 }
 
 void AudioScheduledSourceNode::stop(double when)
 {
     ASSERT(isMainThread());
     if (!(m_playbackState == SCHEDULED_STATE || m_playbackState == PLAYING_STATE))
         return;
-    
+
     when = max(0.0, when);
     m_endTime = when;
 }
 
 void AudioScheduledSourceNode::noteOn(double when)
 {
     start(when);
 }
 
 void AudioScheduledSourceNode::noteOff(double when)
@@ skipping 28 matching lines @@
 void AudioScheduledSourceNode::notifyEnded()
 {
     RefPtr<Event> event = Event::create(eventNames().endedEvent, FALSE, FALSE);
     event->setTarget(this);
     dispatchEvent(event.get());
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)