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

Source/wtf/RefCountedLeakCounter.cpp

 /*
  *  Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 43 matching lines @@
 void RefCountedLeakCounter::cancelMessageSuppression(const char* reason)
 {
     ASSERT(leakMessageSuppressionReasons);
     ASSERT(leakMessageSuppressionReasons->contains(reason));
     leakMessageSuppressionReasons->remove(reason);
 }
 
 RefCountedLeakCounter::RefCountedLeakCounter(const char* description)
     : m_description(description)
 {
-}    
+}
 
 RefCountedLeakCounter::~RefCountedLeakCounter()
 {
     static bool loggedSuppressionReason;
     if (m_count) {
         if (!leakMessageSuppressionReasons || leakMessageSuppressionReasons->isEmpty())
             LOG(RefCountedLeaks, "LEAK: %u %s", m_count, m_description);
         else if (!loggedSuppressionReason) {
             // This logs only one reason. Later we could change it so we log all the reasons.
             LOG(RefCountedLeaks, "No leak checking done: %s", leakMessageSuppressionReasons->begin()->key);
             loggedSuppressionReason = true;
         }
     }
 }
 
 void RefCountedLeakCounter::increment()
 {
     atomicIncrement(&m_count);
 }
 
 void RefCountedLeakCounter::decrement()
 {
     atomicDecrement(&m_count);
 }
 
 #endif
 
 } // namespace WTF