Rename renderer to layoutObject in core/editing.

Source/core/editing/PlainTextRange.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov.
  *
  * 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 88 matching lines @@
         textRunEndPosition = it.endPositionInCurrentContainer();
 
         bool foundStart = start() >= docTextPosition && start() <= docTextPosition + len;
         bool foundEnd = end() >= docTextPosition && end() <= docTextPosition + len;
 
         // Fix textRunRange->endPosition(), but only if foundStart || foundEnd, because it is only
         // in those cases that textRunRange is used.
         if (foundEnd) {
             // FIXME: This is a workaround for the fact that the end of a run
             // is often at the wrong position for emitted '\n's or if the
-            // renderer of the current node is a replaced element.
+            // layoutObject of the current node is a replaced element.
             if (len == 1 && (it.text().characterAt(0) == '\n' || it.isInsideReplacedElement())) {
                 it.advance();
                 if (!it.atEnd()) {
                     textRunEndPosition = it.startPositionInCurrentContainer();
                 } else {
                     Position runEnd = VisiblePosition(textRunStartPosition).next().deepEquivalent();
                     if (runEnd.isNotNull())
                         textRunEndPosition = createLegacyEditingPosition(runEnd.containerNode(), runEnd.computeOffsetInContainerNode());
                 }
             }
@@ skipping 58 matching lines @@
     size_t start = TextIterator::rangeLength(testRange->startPosition(), testRange->endPosition());
 
     testRange->setEnd(range.endContainer(), range.endOffset(), IGNORE_EXCEPTION);
     ASSERT(testRange->startContainer() == &scope);
     size_t end = TextIterator::rangeLength(testRange->startPosition(), testRange->endPosition());
 
     return PlainTextRange(start, end);
 }
 
 }