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

Source/core/dom/Text.h

Index: Source/core/dom/Text.h
diff --git a/Source/core/dom/Text.h b/Source/core/dom/Text.h
index 65f7738ec57270ee468759232d180a321ea22d7d..95c502b975ad877b086f13a56ab564e005a4e73d 100644
--- a/Source/core/dom/Text.h
+++ b/Source/core/dom/Text.h
@@ -45,7 +45,7 @@ public:
 
     String wholeText() const;
     PassRefPtr<Text> replaceWholeText(const String&);
-    
+
     bool recalcTextStyle(StyleChange);
     void createTextRendererIfNeeded();
     bool textRendererIsNeeded(const NodeRenderingContext&);
@@ -53,7 +53,7 @@ public:
     void updateTextRenderer(unsigned offsetOfReplacedData, unsigned lengthOfReplacedData);
 
     virtual void attach(const AttachContext& = AttachContext()) OVERRIDE FINAL;
-    
+
     virtual bool canContainRangeEndPoint() const OVERRIDE FINAL { return true; }
     virtual NodeType nodeType() const OVERRIDE;