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

Source/modules/webaudio/AsyncAudioDecoder.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:
  * 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 29 matching lines @@
 AsyncAudioDecoder::AsyncAudioDecoder()
 {
     // Start worker thread.
     MutexLocker lock(m_threadCreationMutex);
     m_threadID = createThread(AsyncAudioDecoder::threadEntry, this, "Audio Decoder");
 }
 
 AsyncAudioDecoder::~AsyncAudioDecoder()
 {
     m_queue.kill();
-    
+
     // Stop thread.
     waitForThreadCompletion(m_threadID);
     m_threadID = 0;
 }
 
 void AsyncAudioDecoder::decodeAsync(ArrayBuffer* audioData, float sampleRate, PassRefPtr<AudioBufferCallback> successCallback, PassRefPtr<AudioBufferCallback> errorCallback)
 {
     ASSERT(isMainThread());
     ASSERT(audioData);
     if (!audioData)
@@ skipping 42 matching lines @@
 }
 
 void AsyncAudioDecoder::DecodingTask::decode()
 {
     ASSERT(m_audioData.get());
     if (!m_audioData.get())
         return;
 
     // Do the actual decoding and invoke the callback.
     m_audioBuffer = AudioBuffer::createFromAudioFileData(m_audioData->data(), m_audioData->byteLength(), false, sampleRate());
-    
+
     // Decoding is finished, but we need to do the callbacks on the main thread.
     callOnMainThread(notifyCompleteDispatch, this);
 }
 
 void AsyncAudioDecoder::DecodingTask::notifyCompleteDispatch(void* userData)
 {
     AsyncAudioDecoder::DecodingTask* task = reinterpret_cast<AsyncAudioDecoder::DecodingTask*>(userData);
     ASSERT(task);
     if (!task)
         return;
 
     task->notifyComplete();
 }
 
 void AsyncAudioDecoder::DecodingTask::notifyComplete()
 {
     if (audioBuffer() && successCallback())
         successCallback()->handleEvent(audioBuffer());
     else if (errorCallback())
         errorCallback()->handleEvent(audioBuffer());
 
     // Our ownership was given up in AsyncAudioDecoder::runLoop()
     // Make sure to clean up here.
     delete this;
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)