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

Source/modules/speech/SpeechSynthesisEvent.h

Index: Source/modules/speech/SpeechSynthesisEvent.h
diff --git a/Source/modules/speech/SpeechSynthesisEvent.h b/Source/modules/speech/SpeechSynthesisEvent.h
index 51b43d6c9939aa6225bd987d729358cf92955c29..fe69a393801e9352ef5ac930ab78ecde4cb4b071 100644
--- a/Source/modules/speech/SpeechSynthesisEvent.h
+++ b/Source/modules/speech/SpeechSynthesisEvent.h
@@ -30,18 +30,18 @@
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
-    
+
 class SpeechSynthesisEvent : public Event {
 public:
     static PassRefPtr<SpeechSynthesisEvent> create();
     static PassRefPtr<SpeechSynthesisEvent> create(const AtomicString& type, unsigned long charIndex, float elapsedTime, const String& name);
-    
+
     unsigned long charIndex() const { return m_charIndex; }
     float elapsedTime() const { return m_elapsedTime; }
     const String& name() const { return m_name; }
-    
+
     virtual const AtomicString& interfaceName() const { return eventNames().interfaceForSpeechSynthesisEvent; }
-    
+
 private:
     SpeechSynthesisEvent();
     SpeechSynthesisEvent(const AtomicString& type, unsigned long charIndex, float elapsedTime, const String& name);
@@ -50,7 +50,7 @@ private:
     float m_elapsedTime;
     String m_name;
 };
-    
+
 } // namespace WebCore
 
 #endif // SpeechSynthesisEvent_h