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

Source/core/css/CSSParser.h

Index: Source/core/css/CSSParser.h
diff --git a/Source/core/css/CSSParser.h b/Source/core/css/CSSParser.h
index fdb7779c4cc1a50d5dd911ba3c023bd117b11364..1c5ff4a2a42b76bdec6fe184682c0cbaf5d9c213 100644
--- a/Source/core/css/CSSParser.h
+++ b/Source/core/css/CSSParser.h
@@ -271,7 +271,7 @@ public:
 #endif // CSS3_TEXT
 
     PassRefPtr<CSSValue> parseTextIndent();
-    
+
     bool parseLineBoxContain(bool important);
     bool parseCalculation(CSSParserValue*, CalculationPermittedValueRange);
 
@@ -528,7 +528,7 @@ private:
 
     inline bool inStrictMode() const { return m_context.mode == CSSStrictMode || m_context.mode == SVGAttributeMode; }
     inline bool inQuirksMode() const { return m_context.mode == CSSQuirksMode; }
-    
+
     KURL completeURL(const String& url) const;
 
     void recheckAtKeyword(const UChar* str, int len);