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

Source/modules/webaudio/DelayDSPKernel.h

Index: Source/modules/webaudio/DelayDSPKernel.h
diff --git a/Source/modules/webaudio/DelayDSPKernel.h b/Source/modules/webaudio/DelayDSPKernel.h
index 374642c65aea318495807a1503751af786b9d6ff..ca23f0ec771da9fc2c42260551c74e5fad1072d8 100644
--- a/Source/modules/webaudio/DelayDSPKernel.h
+++ b/Source/modules/webaudio/DelayDSPKernel.h
@@ -32,17 +32,17 @@
 namespace WebCore {
 
 class DelayProcessor;
-    
+
 class DelayDSPKernel : public AudioDSPKernel {
-public:  
+public:
     explicit DelayDSPKernel(DelayProcessor*);
     DelayDSPKernel(double maxDelayTime, float sampleRate);
-    
+
     virtual void process(const float* source, float* destination, size_t framesToProcess);
     virtual void reset();
-    
+
     double maxDelayTime() const { return m_maxDelayTime; }
-    
+
     void setDelayFrames(double numberOfFrames) { m_desiredDelayFrames = numberOfFrames; }
 
     virtual double tailTime() const OVERRIDE;