Fix trailing whitespace in .cpp, .h, and .idl files

Source/core/platform/ScrollableArea.cpp

Index: Source/core/platform/ScrollableArea.cpp
diff --git a/Source/core/platform/ScrollableArea.cpp b/Source/core/platform/ScrollableArea.cpp
index 3075a11188b780d4af629abc32d52f0fc3d974a6..96999b5ab20276dcfe1c1b69b766d7bec06e30dd 100644
--- a/Source/core/platform/ScrollableArea.cpp
+++ b/Source/core/platform/ScrollableArea.cpp
@@ -1,11 +1,11 @@
 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  * Copyright (C) 2008, 2011 Apple 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:
- * 
+ *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ -15,7 +15,7 @@
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
@@ -208,7 +208,7 @@ void ScrollableArea::willEndLiveResize()
     m_inLiveResize = false;
     if (ScrollAnimator* scrollAnimator = existingScrollAnimator())
         scrollAnimator->willEndLiveResize();
-}    
+}
 
 void ScrollableArea::contentAreaWillPaint() const
 {
@@ -308,7 +308,7 @@ void ScrollableArea::setScrollbarOverlayStyle(ScrollbarOverlayStyle overlayStyle
         ScrollbarTheme::theme()->updateScrollbarOverlayStyle(horizontalScrollbar());
         horizontalScrollbar()->invalidate();
     }
-    
+
     if (verticalScrollbar()) {
         ScrollbarTheme::theme()->updateScrollbarOverlayStyle(verticalScrollbar());
         verticalScrollbar()->invalidate();