Oilpan: move Range object to the oilpan heap.

Source/core/editing/TextIterator.h

 /*
  * Copyright (C) 2004, 2006, 2009 Apple Inc. All rights reserved.
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TextIterator_h
 #define TextIterator_h
 
 #include "core/dom/Range.h"
 #include "core/editing/FindOptions.h"
+#include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class InlineTextBox;
 class RenderText;
 class RenderTextFragment;
 
 enum TextIteratorBehavior {
     TextIteratorDefaultBehavior = 0,
     TextIteratorEmitsCharactersBetweenAllVisiblePositions = 1 << 0,
     TextIteratorEntersTextControls = 1 << 1,
     TextIteratorIgnoresStyleVisibility = 1 << 2,
     TextIteratorEmitsOriginalText = 1 << 3,
     TextIteratorStopsOnFormControls = 1 << 4,
     TextIteratorEmitsImageAltText = 1 << 5,
     TextIteratorEntersAuthorShadowRoots = 1 << 6
 };
 typedef unsigned TextIteratorBehaviorFlags;
 
 String plainText(const Range*, TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
-PassRefPtr<Range> findPlainText(const Range*, const String&, FindOptions);
-PassRefPtr<Range> findPlainText(const Position& start, const Position& end, const String&, FindOptions);
+PassRefPtrWillBeRawPtr<Range> findPlainText(const Range*, const String&, FindOptions);
+PassRefPtrWillBeRawPtr<Range> findPlainText(const Position& start, const Position& end, const String&, FindOptions);
 
 class BitStack {
 public:
     BitStack();
     ~BitStack();
 
     void push(bool);
     void pop();
 
     bool top() const;
@@ skipping 32 matching lines @@
             return;
         if (m_singleCharacterBuffer) {
             ASSERT(!position);
             ASSERT(length() == 1);
             output.append(&m_singleCharacterBuffer, 1);
         } else {
             string().appendTo(output, startOffset() + position, lengthToAppend);
         }
     }
 
-    PassRefPtr<Range> range() const;
+    PassRefPtrWillBeRawPtr<Range> range() const;
     Node* node() const;
 
     static int rangeLength(const Range*, bool spacesForReplacedElements = false);
-    static PassRefPtr<Range> subrange(Range* entireRange, int characterOffset, int characterCount);
+    static PassRefPtrWillBeRawPtr<Range> subrange(Range* entireRange, int characterOffset, int characterCount);
 
 private:
     enum IterationProgress {
         HandledNone,
         HandledAuthorShadowRoots,
         HandledUserAgentShadowRoot,
         HandledNode,
         HandledChildren
     };
 
@@ skipping 105 matching lines @@
     void prependTextTo(BufferType& output)
     {
         if (!m_textLength)
             return;
         if (m_singleCharacterBuffer)
             output.prepend(&m_singleCharacterBuffer, 1);
         else
             m_textContainer.prependTo(output, m_textOffset, m_textLength);
     }
 
-    PassRefPtr<Range> range() const;
+    PassRefPtrWillBeRawPtr<Range> range() const;
 
 private:
     void exitNode();
     bool handleTextNode();
     RenderText* handleFirstLetter(int& startOffset, int& offsetInNode);
     bool handleReplacedElement();
     bool handleNonTextNode();
     void emitCharacter(UChar, Node*, int startOffset, int endOffset);
     bool advanceRespectingRange(Node*);
 
@@ skipping 56 matching lines @@
     bool atBreak() const { return m_atBreak; }
     bool atEnd() const { return m_textIterator.atEnd(); }
 
     int length() const { return m_textIterator.length() - m_runOffset; }
     UChar characterAt(unsigned index) const { return m_textIterator.characterAt(m_runOffset + index); }
 
     template<typename BufferType>
     void appendTextTo(BufferType& output) { m_textIterator.appendTextTo(output, m_runOffset); }
 
     int characterOffset() const { return m_offset; }
-    PassRefPtr<Range> range() const;
+    PassRefPtrWillBeRawPtr<Range> range() const;
 
 private:
     void initialize();
 
     int m_offset;
     int m_runOffset;
     bool m_atBreak;
 
     TextIterator m_textIterator;
 };
 
 class BackwardsCharacterIterator {
 public:
     explicit BackwardsCharacterIterator(const Range*, TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
 
     void advance(int);
 
     bool atEnd() const { return m_textIterator.atEnd(); }
 
-    PassRefPtr<Range> range() const;
+    PassRefPtrWillBeRawPtr<Range> range() const;
 
 private:
     int m_offset;
     int m_runOffset;
     bool m_atBreak;
 
     SimplifiedBackwardsTextIterator m_textIterator;
 };
 
 // Very similar to the TextIterator, except that the chunks of text returned are "well behaved",
 // meaning they never end split up a word.  This is useful for spellcheck or (perhaps one day) searching.
 class WordAwareIterator {
+    STACK_ALLOCATED();
 public:
     explicit WordAwareIterator(const Range*);
     ~WordAwareIterator();
 
     bool atEnd() const { return !m_didLookAhead && m_textIterator.atEnd(); }
     void advance();
 
     String substring(unsigned position, unsigned length) const;
     UChar characterAt(unsigned index) const;
     int length() const;
 
 private:
     Vector<UChar> m_buffer;
     // Did we have to look ahead in the textIterator to confirm the current chunk?
     bool m_didLookAhead;
-    RefPtr<Range> m_range;
+    RefPtrWillBeMember<Range> m_range;
     TextIterator m_textIterator;
 };
 
 }
 
 #endif