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

Source/core/css/CSSPrimitiveValue.h

Index: Source/core/css/CSSPrimitiveValue.h
diff --git a/Source/core/css/CSSPrimitiveValue.h b/Source/core/css/CSSPrimitiveValue.h
index 33fc67d45684bdea2a42ff2cbeafe9f5e4c1ef39..c0c3f4ffe40ff377a76f8e62d24c5b21278bdee6 100644
--- a/Source/core/css/CSSPrimitiveValue.h
+++ b/Source/core/css/CSSPrimitiveValue.h
@@ -298,7 +298,7 @@ public:
     Pair* getPairValue() const { return m_primitiveUnitType != CSS_PAIR ? 0 : m_value.pair; }
 
     CSSBasicShape* getShapeValue() const { return m_primitiveUnitType != CSS_SHAPE ? 0 : m_value.shape; }
-    
+
     CSSCalcValue* cssCalcValue() const { return m_primitiveUnitType != CSS_CALC ? 0 : m_value.calc; }
 
     CSSPropertyID getPropertyID() const { return m_primitiveUnitType == CSS_PROPERTY_ID ? m_value.propertyID : CSSPropertyInvalid; }
@@ -315,7 +315,7 @@ public:
     void addSubresourceStyleURLs(ListHashSet<KURL>&, const StyleSheetContents*) const;
 
     Length viewportPercentageLength();
-    
+
     PassRefPtr<CSSPrimitiveValue> cloneForCSSOM() const;
     void setCSSOMSafe() { m_isCSSOMSafe = true; }