Oilpan: Introduce TempRangeScope to avoid needless Range attaches on Document.

Source/core/editing/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 313 matching lines @@
         m_frame.document()->markers().removeMarkers(selectedRange.get(), DocumentMarker::MisspellingMarkers());
 }
 
 void SpellChecker::markMisspellingsAndBadGrammar(const VisibleSelection &movingSelection)
 {
     markMisspellingsAndBadGrammar(movingSelection, isContinuousSpellCheckingEnabled() && isGrammarCheckingEnabled(), movingSelection);
 }
 
 void SpellChecker::markMisspellingsAfterTypingToWord(const VisiblePosition &wordStart, const VisibleSelection& selectionAfterTyping)
 {
+    TempRangeScope scope;
     if (unifiedTextCheckerEnabled()) {
         TextCheckingTypeMask textCheckingOptions = 0;
 
         if (isContinuousSpellCheckingEnabled())
             textCheckingOptions |= TextCheckingTypeSpelling;
 
         if (!(textCheckingOptions & TextCheckingTypeSpelling))
             return;
 
         if (isGrammarCheckingEnabled())
@@ skipping 390 matching lines @@
         // If this is a change in selection resulting from a delete operation,
         // oldSelection may no longer be in the document.
         if (shouldCheckSpellingAndGrammar
             && closeTyping
             && oldSelection.isContentEditable()
             && oldSelection.start().inDocument()
             && !isSelectionInTextField(oldSelection)) {
             spellCheckOldSelection(oldSelection, newAdjacentWords, newSelectedSentence);
         }
 
+
         if (textChecker().shouldEraseMarkersAfterChangeSelection(TextCheckingTypeSpelling)) {
+            TempRangeScope scope;
             if (RefPtrWillBeRawPtr<Range> wordRange = newAdjacentWords.toNormalizedRange())
                 m_frame.document()->markers().removeMarkers(wordRange.get(), DocumentMarker::Spelling);
         }
         if (textChecker().shouldEraseMarkersAfterChangeSelection(TextCheckingTypeGrammar)) {
+            TempRangeScope scope;
             if (RefPtrWillBeRawPtr<Range> sentenceRange = newSelectedSentence.toNormalizedRange())
                 m_frame.document()->markers().removeMarkers(sentenceRange.get(), DocumentMarker::Grammar);
         }
     }
 
     // When continuous spell checking is off, existing markers disappear after the selection changes.
     if (!isContinuousSpellCheckingEnabled)
         m_frame.document()->markers().removeMarkers(DocumentMarker::Spelling);
     if (!isContinuousGrammarCheckingEnabled)
         m_frame.document()->markers().removeMarkers(DocumentMarker::Grammar);
@@ skipping 88 matching lines @@
 }
 
 void SpellChecker::requestTextChecking(const Element& element)
 {
     RefPtrWillBeRawPtr<Range> rangeToCheck = rangeOfContents(const_cast<Element*>(&element));
     m_spellCheckRequester->requestCheckingFor(SpellCheckRequest::create(TextCheckingTypeSpelling | TextCheckingTypeGrammar, TextCheckingProcessBatch, rangeToCheck, rangeToCheck));
 }
 
 
 } // namespace WebCore