Rename {Author,UserAgent}ShadowRoot to {Open,Closed}ShadowRoot.

Source/core/editing/iterators/CharacterIterator.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 603 matching lines @@
         }
         if (it.atBreak() && !buffer.atBreak()) {
             buffer.reachedBreak();
             goto tryAgain;
         }
     }
 
     return matchLength;
 }
 
-static const TextIteratorBehaviorFlags iteratorFlagsForFindPlainText = TextIteratorEntersTextControls | TextIteratorEntersAuthorShadowRoots | TextIteratorDoesNotBreakAtReplacedElement;
+static const TextIteratorBehaviorFlags iteratorFlagsForFindPlainText = TextIteratorEntersTextControls | TextIteratorEntersOpenShadowRoots | TextIteratorDoesNotBreakAtReplacedElement;
 
 PassRefPtrWillBeRawPtr<Range> findPlainText(const Range* range, const String& target, FindOptions options)
 {
     // First, find the text.
     size_t matchStart;
     size_t matchLength;
     {
         CharacterIterator findIterator(range, iteratorFlagsForFindPlainText);
         matchLength = findPlainTextInternal(findIterator, target, options, matchStart);
         if (!matchLength)
@@ skipping 29 matching lines @@
             resultEnd = collapseTo;
             return;
         }
     }
 
     CharacterIterator computeRangeIterator(inputStart, inputEnd, iteratorFlagsForFindPlainText);
     computeRangeIterator.calculateCharacterSubrange(matchStart, matchLength, resultStart, resultEnd);
 }
 
 } // namespace blink