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

Source/modules/webaudio/OscillatorNode.h

 /*
  * 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 37 matching lines @@
         SINE = 0,
         SQUARE = 1,
         SAWTOOTH = 2,
         TRIANGLE = 3,
         CUSTOM = 4
     };
 
     static PassRefPtr<OscillatorNode> create(AudioContext*, float sampleRate);
 
     virtual ~OscillatorNode();
-    
+
     // AudioNode
     virtual void process(size_t framesToProcess);
     virtual void reset();
 
     String type() const;
 
     bool setType(unsigned); // Returns true on success.
     void setType(const String&);
 
     AudioParam* frequency() { return m_frequency.get(); }
     AudioParam* detune() { return m_detune.get(); }
 
     void setPeriodicWave(PeriodicWave*);
 
 private:
     OscillatorNode(AudioContext*, float sampleRate);
 
     // Returns true if there are sample-accurate timeline parameter changes.
     bool calculateSampleAccuratePhaseIncrements(size_t framesToProcess);
 
     virtual bool propagatesSilence() const OVERRIDE;
 
     // One of the waveform types defined in the enum.
     unsigned short m_type;
-    
+
     // Frequency value in Hertz.
     RefPtr<AudioParam> m_frequency;
 
     // Detune value (deviating from the frequency) in Cents.
     RefPtr<AudioParam> m_detune;
 
     bool m_firstRender;
 
     // m_virtualReadIndex is a sample-frame index into our buffer representing the current playback position.
     // Since it's floating-point, it has sub-sample accuracy.
     double m_virtualReadIndex;
 
     // This synchronizes process().
     mutable Mutex m_processLock;
 
     // Stores sample-accurate values calculated according to frequency and detune.
     AudioFloatArray m_phaseIncrements;
     AudioFloatArray m_detuneValues;
-    
+
     RefPtr<PeriodicWave> m_periodicWave;
 
     // Cache the wave tables for different waveform types, except CUSTOM.
     static PeriodicWave* s_periodicWaveSine;
     static PeriodicWave* s_periodicWaveSquare;
     static PeriodicWave* s_periodicWaveSawtooth;
     static PeriodicWave* s_periodicWaveTriangle;
 };
 
 } // namespace WebCore
 
 #endif // OscillatorNode_h