Minimize RenderObject* casting to RenderText*

Source/core/editing/VisibleUnits.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 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 279 matching lines @@
 {
     previousBoxInDifferentBlock = false;
 
     // FIXME: Handle the case when we don't have an inline text box.
     const InlineTextBox* previousBox = logicallyPreviousBox(visiblePosition, textBox, previousBoxInDifferentBlock, leafBoxes);
 
     int len = 0;
     string.clear();
     if (previousBox) {
         previousBoxLength = previousBox->len();
-        previousBox->textRenderer().text().appendTo(string, previousBox->start(), previousBoxLength);
+        previousBox->renderer().text().appendTo(string, previousBox->start(), previousBoxLength);
         len += previousBoxLength;
     }
-    textBox->textRenderer().text().appendTo(string, textBox->start(), textBox->len());
+    textBox->renderer().text().appendTo(string, textBox->start(), textBox->len());
     len += textBox->len();
 
     return wordBreakIterator(string.data(), len);
 }
 
 static TextBreakIterator* wordBreakIteratorForMaxOffsetBoundary(const VisiblePosition& visiblePosition, const InlineTextBox* textBox,
     bool& nextBoxInDifferentBlock, Vector<UChar, 1024>& string, CachedLogicallyOrderedLeafBoxes& leafBoxes)
 {
     nextBoxInDifferentBlock = false;
 
     // FIXME: Handle the case when we don't have an inline text box.
     const InlineTextBox* nextBox = logicallyNextBox(visiblePosition, textBox, nextBoxInDifferentBlock, leafBoxes);
 
     int len = 0;
     string.clear();
-    textBox->textRenderer().text().appendTo(string, textBox->start(), textBox->len());
+    textBox->renderer().text().appendTo(string, textBox->start(), textBox->len());
     len += textBox->len();
     if (nextBox) {
-        nextBox->textRenderer().text().appendTo(string, nextBox->start(), nextBox->len());
+        nextBox->renderer().text().appendTo(string, nextBox->start(), nextBox->len());
         len += nextBox->len();
     }
 
     return wordBreakIterator(string.data(), len);
 }
 
 static bool isLogicalStartOfWord(TextBreakIterator* iter, int position, bool hardLineBreak)
 {
     bool boundary = hardLineBreak ? true : iter->isBoundary(position);
     if (!boundary)
@@ skipping 46 matching lines @@
         int previousBoxLength = 0;
         bool previousBoxInDifferentBlock = false;
         bool nextBoxInDifferentBlock = false;
         bool movingIntoNewBox = previouslyVisitedBox != box;
 
         if (offsetInBox == box->caretMinOffset())
             iter = wordBreakIteratorForMinOffsetBoundary(visiblePosition, textBox, previousBoxLength, previousBoxInDifferentBlock, string, leafBoxes);
         else if (offsetInBox == box->caretMaxOffset())
             iter = wordBreakIteratorForMaxOffsetBoundary(visiblePosition, textBox, nextBoxInDifferentBlock, string, leafBoxes);
         else if (movingIntoNewBox) {
-            iter = wordBreakIterator(textBox->textRenderer().text(), textBox->start(), textBox->len());
+            iter = wordBreakIterator(textBox->renderer().text(), textBox->start(), textBox->len());
             previouslyVisitedBox = box;
         }
 
         if (!iter)
             break;
 
         iter->first();
         int offsetInIterator = offsetInBox - textBox->start() + previousBoxLength;
 
         bool isWordBreak;
@@ skipping 980 matching lines @@
 {
     return direction == LTR ? logicalStartOfLine(c) : logicalEndOfLine(c);
 }
 
 VisiblePosition rightBoundaryOfLine(const VisiblePosition& c, TextDirection direction)
 {
     return direction == LTR ? logicalEndOfLine(c) : logicalStartOfLine(c);
 }
 
 }