Removal of more temporary Range objects.

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 33 matching lines @@
     TextIteratorIgnoresStyleVisibility = 1 << 2,
     TextIteratorEmitsOriginalText = 1 << 3,
     TextIteratorStopsOnFormControls = 1 << 4,
     TextIteratorEmitsImageAltText = 1 << 5,
     TextIteratorEntersAuthorShadowRoots = 1 << 6,
     TextIteratorEmitsObjectReplacementCharacter = 1 << 7
 };
 typedef unsigned TextIteratorBehaviorFlags;
 
 String plainText(const Range*, TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
+String plainText(const Position& start, const Position& end, TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
 PassRefPtrWillBeRawPtr<Range> findPlainText(const Range*, const String&, FindOptions);
 void findPlainText(const Position& inputStart, const Position& inputEnd, const String&, FindOptions, Position& resultStart, Position& resultEnd);
 
 class BitStack {
 public:
     BitStack();
     ~BitStack();
 
     void push(bool);
     void pop();
@@ skipping 53 matching lines @@
     int endOffset() const;
     Position startPosition() const;
     Position endPosition() const;
 
     // Computes the length of the given range using a text iterator. The default
     // iteration behavior is to always emit object replacement characters for
     // replaced elements. When |forSelectionPreservation| is set to true, it
     // also emits spaces for other non-text nodes using the
     // |TextIteratorEmitsCharactersBetweenAllVisiblePosition| mode.
     static int rangeLength(const Range*, bool forSelectionPreservation = false);
+    static int rangeLength(const Position& start, const Position& end, bool forSelectionPreservation = false);
     static PassRefPtrWillBeRawPtr<Range> subrange(Range* entireRange, int characterOffset, int characterCount);
+    static void subrange(Position& start, Position& end, int characterOffset, int characterCount);
 
 private:
     enum IterationProgress {
         HandledNone,
         HandledAuthorShadowRoots,
         HandledUserAgentShadowRoot,
         HandledNode,
         HandledChildren
     };
 
@@ skipping 236 matching lines @@
     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*);
+    explicit WordAwareIterator(const Position& start, const Position& end);
     ~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;
     TextIterator m_textIterator;
 };
 
 }
 
 #endif