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

Source/core/loader/ImageLoader.cpp

Index: Source/core/loader/ImageLoader.cpp
diff --git a/Source/core/loader/ImageLoader.cpp b/Source/core/loader/ImageLoader.cpp
index 9fbabee79622c331ba92247f7abdc00eb8968b9a..fccde0c836699f405fac4564917d469ad1364b70 100644
--- a/Source/core/loader/ImageLoader.cpp
+++ b/Source/core/loader/ImageLoader.cpp
@@ -190,7 +190,7 @@ void ImageLoader::updateFromElement()
         m_hasPendingErrorEvent = true;
         errorEventSender().dispatchEventSoon(this);
     }
-    
+
     CachedImage* oldImage = m_image.get();
     if (newImage != oldImage) {
         if (m_hasPendingBeforeLoadEvent) {
@@ -346,7 +346,7 @@ void ImageLoader::updatedHasPendingEvent()
     } else {
         ASSERT(!m_derefElementTimer.isActive());
         m_derefElementTimer.startOneShot(0);
-    }   
+    }
 }
 
 void ImageLoader::timerFired(Timer<ImageLoader>*)
@@ -386,7 +386,7 @@ void ImageLoader::dispatchPendingBeforeLoadEvent()
 
     loadEventSender().cancelEvent(this);
     m_hasPendingLoadEvent = false;
-    
+
     if (m_element->hasTagName(HTMLNames::objectTag))
         static_cast<HTMLObjectElement*>(m_element)->renderFallbackContent();