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

Source/core/html/HTMLTableElement.cpp

Index: Source/core/html/HTMLTableElement.cpp
diff --git a/Source/core/html/HTMLTableElement.cpp b/Source/core/html/HTMLTableElement.cpp
index 001f141c07b64bc40545ea3e17ae8ea24fef9764..f0fa060d831b55299969cd80fd397e7bf80d3ab8 100644
--- a/Source/core/html/HTMLTableElement.cpp
+++ b/Source/core/html/HTMLTableElement.cpp
@@ -305,7 +305,7 @@ void HTMLTableElement::collectStyleForPresentationAttribute(const QualifiedName&
         addHTMLLengthToStyle(style, CSSPropertyWidth, value);
     else if (name == heightAttr)
         addHTMLLengthToStyle(style, CSSPropertyHeight, value);
-    else if (name == borderAttr) 
+    else if (name == borderAttr)
         addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, parseBorderWidthAttribute(value), CSSPrimitiveValue::CSS_PX);
     else if (name == bordercolorAttr) {
         if (!value.isEmpty())
@@ -426,7 +426,7 @@ const StylePropertySet* HTMLTableElement::additionalPresentationAttributeStyle()
 {
     if (m_frameAttr)
         return 0;
-    
+
     if (!m_borderAttr && !m_borderColorAttr) {
         // Setting the border to 'hidden' allows it to win over any border
         // set on the table's cells during border-conflict resolution.
@@ -498,7 +498,7 @@ PassRefPtr<StylePropertySet> HTMLTableElement::createSharedCellStyle()
         style->setProperty(CSSPropertyBorderColor, cssValuePool().createInheritedValue());
         break;
     case NoBorders:
-        // If 'rules=none' then allow any borders set at cell level to take effect. 
+        // If 'rules=none' then allow any borders set at cell level to take effect.
         break;
     }