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

Source/core/html/parser/HTMLDocumentParser.cpp

Index: Source/core/html/parser/HTMLDocumentParser.cpp
diff --git a/Source/core/html/parser/HTMLDocumentParser.cpp b/Source/core/html/parser/HTMLDocumentParser.cpp
index e47d69c940d90657cd80fe17e0c88b532d325383..c4d2d03678c955f66a489e2309e69040b56021ae 100644
--- a/Source/core/html/parser/HTMLDocumentParser.cpp
+++ b/Source/core/html/parser/HTMLDocumentParser.cpp
@@ -391,7 +391,7 @@ void HTMLDocumentParser::processParsedChunkFromBackgroundParser(PassOwnPtr<Parse
 
     for (XSSInfoStream::const_iterator it = chunk->xssInfos.begin(); it != chunk->xssInfos.end(); ++it) {
         m_textPosition = (*it)->m_textPosition;
-        m_xssAuditorDelegate.didBlockScript(**it); 
+        m_xssAuditorDelegate.didBlockScript(**it);
         if (isStopped())
             break;
     }
@@ -871,7 +871,7 @@ void HTMLDocumentParser::stopWatchingForLoad(CachedResource* cachedScript)
 {
     cachedScript->removeClient(this);
 }
-    
+
 void HTMLDocumentParser::appendCurrentInputStreamToPreloadScannerAndScan()
 {
     ASSERT(m_preloadScanner);
@@ -924,7 +924,7 @@ void HTMLDocumentParser::parseDocumentFragment(const String& source, DocumentFra
     ASSERT(!parser->processingData()); // Make sure we're done. <rdar://problem/3963151>
     parser->detach(); // Allows ~DocumentParser to assert it was detached before destruction.
 }
-    
+
 void HTMLDocumentParser::suspendScheduledTasks()
 {
     if (m_parserScheduler)