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

Source/core/html/HTMLMarqueeElement.cpp

Index: Source/core/html/HTMLMarqueeElement.cpp
diff --git a/Source/core/html/HTMLMarqueeElement.cpp b/Source/core/html/HTMLMarqueeElement.cpp
index 6c5362c273a39e4a5fabb46a90361edd0fd5561f..ccd1f12cb6c990184f8885daf696f894572ec797 100644
--- a/Source/core/html/HTMLMarqueeElement.cpp
+++ b/Source/core/html/HTMLMarqueeElement.cpp
@@ -126,7 +126,7 @@ int HTMLMarqueeElement::scrollAmount() const
     int scrollAmount = fastGetAttribute(scrollamountAttr).toInt(&ok);
     return ok && scrollAmount >= 0 ? scrollAmount : RenderStyle::initialMarqueeIncrement().intValue();
 }
-    
+
 void HTMLMarqueeElement::setScrollAmount(int scrollAmount, ExceptionCode& ec)
 {
     if (scrollAmount < 0)
@@ -134,7 +134,7 @@ void HTMLMarqueeElement::setScrollAmount(int scrollAmount, ExceptionCode& ec)
     else
         setIntegralAttribute(scrollamountAttr, scrollAmount);
 }
-    
+
 int HTMLMarqueeElement::scrollDelay() const
 {
     bool ok;
@@ -149,14 +149,14 @@ void HTMLMarqueeElement::setScrollDelay(int scrollDelay, ExceptionCode& ec)
     else
         setIntegralAttribute(scrolldelayAttr, scrollDelay);
 }
-    
+
 int HTMLMarqueeElement::loop() const
 {
     bool ok;
     int loopValue = fastGetAttribute(loopAttr).toInt(&ok);
     return ok && loopValue > 0 ? loopValue : -1;
 }
-    
+
 void HTMLMarqueeElement::setLoop(int loop, ExceptionCode& ec)
 {
     if (loop <= 0 && loop != -1)