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

Source/modules/webaudio/DefaultAudioDestinationNode.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 18 matching lines @@
 #include "modules/webaudio/DefaultAudioDestinationNode.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/platform/Logging.h"
 #include "wtf/MainThread.h"
 
 const unsigned EnabledInputChannels = 2;
 
 namespace WebCore {
-    
+
 DefaultAudioDestinationNode::DefaultAudioDestinationNode(AudioContext* context)
     : AudioDestinationNode(context, AudioDestination::hardwareSampleRate())
     , m_numberOfInputChannels(0)
 {
     // Node-specific default mixing rules.
     m_channelCount = 2;
     m_channelCountMode = Explicit;
     m_channelInterpretation = AudioBus::Speakers;
 }
 
 DefaultAudioDestinationNode::~DefaultAudioDestinationNode()
 {
     uninitialize();
 }
 
 void DefaultAudioDestinationNode::initialize()
 {
-    ASSERT(isMainThread()); 
+    ASSERT(isMainThread());
     if (isInitialized())
         return;
 
     createDestination();
     AudioNode::initialize();
 }
 
 void DefaultAudioDestinationNode::uninitialize()
 {
-    ASSERT(isMainThread()); 
+    ASSERT(isMainThread());
     if (!isInitialized())
         return;
 
     m_destination->stop();
     m_numberOfInputChannels = 0;
 
     AudioNode::uninitialize();
 }
 
 void DefaultAudioDestinationNode::createDestination()
 {
     float hardwareSampleRate = AudioDestination::hardwareSampleRate();
     LOG(WebAudio, ">>>> hardwareSampleRate = %f\n", hardwareSampleRate);
-    
+
     m_destination = AudioDestination::create(*this, m_inputDeviceId, m_numberOfInputChannels, channelCount(), hardwareSampleRate);
 }
 
 void DefaultAudioDestinationNode::enableInput(const String& inputDeviceId)
 {
     ASSERT(isMainThread());
     if (m_numberOfInputChannels != EnabledInputChannels) {
         m_numberOfInputChannels = EnabledInputChannels;
         m_inputDeviceId = inputDeviceId;
 
@@ skipping 38 matching lines @@
         // Re-create destination.
         m_destination->stop();
         createDestination();
         m_destination->start();
     }
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)