Oilpan: move Range object to the oilpan heap.

Source/core/editing/FrameSelection.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 129 matching lines @@
     void willBeModified(EAlteration, SelectionDirection);
 
     bool isNone() const { return m_selection.isNone(); }
     bool isCaret() const { return m_selection.isCaret(); }
     bool isRange() const { return m_selection.isRange(); }
     bool isCaretOrRange() const { return m_selection.isCaretOrRange(); }
     bool isInPasswordField() const;
 
     // If this FrameSelection has a logical range which is still valid, this function return its clone. Otherwise,
     // the return value from underlying VisibleSelection's firstRange() is returned.
-    PassRefPtr<Range> firstRange() const;
+    PassRefPtrWillBeRawPtr<Range> firstRange() const;
 
-    PassRefPtr<Range> toNormalizedRange() const { return m_selection.toNormalizedRange(); }
+    PassRefPtrWillBeRawPtr<Range> toNormalizedRange() const { return m_selection.toNormalizedRange(); }
 
     void nodeWillBeRemoved(Node&);
     void didUpdateCharacterData(CharacterData*, unsigned offset, unsigned oldLength, unsigned newLength);
     void didMergeTextNodes(const Text& oldNode, unsigned offset);
     void didSplitTextNode(const Text& oldNode);
 
     void setCaretVisible(bool caretIsVisible) { setCaretVisibility(caretIsVisible ? Visible : Hidden); }
     bool recomputeCaretRect();
     void invalidateCaretRect();
     void paintCaret(GraphicsContext*, const LayoutPoint&, const LayoutRect& clipRect);
@@ skipping 88 matching lines @@
     LayoutUnit m_xPosForVerticalArrowNavigation;
 
     VisibleSelection m_selection;
     bool m_observingVisibleSelection;
     VisiblePosition m_originalBase; // Used to store base before the adjustment at bidi boundary
     TextGranularity m_granularity;
 
     // The range specified by the user, which may not be visually canonicalized (hence "logical").
     // This will be invalidated if the underlying VisibleSelection changes. If that happens, this variable will
     // become null, in which case logical positions == visible positions.
-    RefPtr<Range> m_logicalRange;
+    RefPtrWillBePersistent<Range> m_logicalRange;
 
     RefPtr<Node> m_previousCaretNode; // The last node which painted the caret. Retained for clearing the old caret when it moves.
 
     RefPtr<EditingStyle> m_typingStyle;
 
     Timer<FrameSelection> m_caretBlinkTimer;
     // The painted bounds of the caret in absolute coordinates
     IntRect m_absCaretBounds;
     bool m_absCaretBoundsDirty : 1;
     bool m_caretPaint : 1;
@@ skipping 18 matching lines @@
 }
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::FrameSelection&);
 void showTree(const WebCore::FrameSelection*);
 #endif
 
 #endif // FrameSelection_h