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

Source/core/accessibility/AccessibilityScrollbar.cpp

Index: Source/core/accessibility/AccessibilityScrollbar.cpp
diff --git a/Source/core/accessibility/AccessibilityScrollbar.cpp b/Source/core/accessibility/AccessibilityScrollbar.cpp
index 062236d34e665d88979aef1e06c2526c42cfdde7..b48f3864c010af26071bfe9efde8dcc81f4d6b0e 100644
--- a/Source/core/accessibility/AccessibilityScrollbar.cpp
+++ b/Source/core/accessibility/AccessibilityScrollbar.cpp
@@ -43,15 +43,15 @@ PassRefPtr<AccessibilityScrollbar> AccessibilityScrollbar::create(Scrollbar* scr
 {
     return adoptRef(new AccessibilityScrollbar(scrollbar));
 }
-    
+
 LayoutRect AccessibilityScrollbar::elementRect() const
 {
     if (!m_scrollbar)
         return LayoutRect();
-    
+
     return m_scrollbar->frameRect();
 }
-    
+
 Document* AccessibilityScrollbar::document() const
 {
     AccessibilityObject* parent = parentObject();
@@ -79,7 +79,7 @@ bool AccessibilityScrollbar::isEnabled() const
         return false;
     return m_scrollbar->enabled();
 }
-    
+
 float AccessibilityScrollbar::valueForRange() const
 {
     if (!m_scrollbar)
@@ -92,12 +92,12 @@ void AccessibilityScrollbar::setValue(float value)
 {
     if (!m_scrollbar)
         return;
-    
+
     if (!m_scrollbar->scrollableArea())
         return;
 
     float newValue = value * m_scrollbar->maximum();
     m_scrollbar->scrollableArea()->scrollToOffsetWithoutAnimation(m_scrollbar->orientation(), newValue);
 }
-    
+
 } // namespace WebCore