Avoid creating duplicate Range objects when handling misspellings.

third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 519 matching lines @@
         currentChunkStart += checkingLength;
     }
 }
 
 void SpellChecker::markAllMisspellingsAndBadGrammarInRanges(TextCheckingTypeMask textCheckingOptions, const EphemeralRange& checkRange, const EphemeralRange& paragraphRange, bool asynchronous, int requestNumber, int* checkingLength)
 {
     TextCheckingParagraph sentenceToCheck(checkRange, paragraphRange);
     if (checkingLength)
         *checkingLength = sentenceToCheck.checkingLength();
 
-    RefPtrWillBeRawPtr<SpellCheckRequest> request = SpellCheckRequest::create(resolveTextCheckingTypeMask(textCheckingOptions), TextCheckingProcessBatch, createRange(checkRange), createRange(paragraphRange), requestNumber);
+    RefPtrWillBeRawPtr<SpellCheckRequest> request = SpellCheckRequest::create(resolveTextCheckingTypeMask(textCheckingOptions), TextCheckingProcessBatch, checkRange, paragraphRange, requestNumber);
     if (!request)
         return;
 
     if (asynchronous) {
         m_spellCheckRequester->requestCheckingFor(request);
         return;
     }
 
     Vector<TextCheckingResult> results;
     checkTextOfParagraph(textChecker(), sentenceToCheck.text(), resolveTextCheckingTypeMask(textCheckingOptions), results);
@@ skipping 372 matching lines @@
     return blink::unifiedTextCheckerEnabled(m_frame);
 }
 
 void SpellChecker::cancelCheck()
 {
     m_spellCheckRequester->cancelCheck();
 }
 
 void SpellChecker::requestTextChecking(const Element& element)
 {
-    const EphemeralRange range = EphemeralRange::rangeOfContents(element);
-    RefPtrWillBeRawPtr<Range> rangeToCheck = Range::create(element.document(), range.startPosition(), range.endPosition());
+    const EphemeralRange rangeToCheck = EphemeralRange::rangeOfContents(element);
     m_spellCheckRequester->requestCheckingFor(SpellCheckRequest::create(TextCheckingTypeSpelling | TextCheckingTypeGrammar, TextCheckingProcessBatch, rangeToCheck, rangeToCheck));
 }
 
 DEFINE_TRACE(SpellChecker)
 {
     visitor->trace(m_frame);
     visitor->trace(m_spellCheckRequester);
 }
 
 } // namespace blink