Remove code in Editor::rangeOfString() that resets the searchRange irrespective of findNext value.

Source/core/editing/Editor.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 1252 matching lines @@
 
     RefPtr<Node> shadowTreeRoot = referenceRange && referenceRange->startContainer() ? referenceRange->startContainer()->nonBoundaryShadowTreeRootNode() : 0;
     if (shadowTreeRoot) {
         if (forward)
             searchRange->setEnd(shadowTreeRoot.get(), shadowTreeRoot->childNodeCount());
         else
             searchRange->setStart(shadowTreeRoot.get(), 0);
     }
 
     RefPtr<Range> resultRange(findPlainText(searchRange.get(), target, options));
-    // If we started in the reference range and the found range exactly matches the reference range, find again.
-    // Build a selection with the found range to remove collapsed whitespace.
-    // Compare ranges instead of selection objects to ignore the way that the current selection was made.
-    if (startInReferenceRange && areRangesEqual(VisibleSelection(resultRange.get()).toNormalizedRange().get(), referenceRange)) {
-        searchRange = rangeOfContents(m_frame.document());
-        if (forward)
-            searchRange->setStart(referenceRange->endPosition());
-        else
-            searchRange->setEnd(referenceRange->startPosition());
-
-        if (shadowTreeRoot) {
-            if (forward)
-                searchRange->setEnd(shadowTreeRoot.get(), shadowTreeRoot->childNodeCount());
-            else
-                searchRange->setStart(shadowTreeRoot.get(), 0);
-        }
-
-        resultRange = findPlainText(searchRange.get(), target, options);
-    }
 
     // If nothing was found in the shadow tree, search in main content following the shadow tree.
     if (resultRange->collapsed(ASSERT_NO_EXCEPTION) && shadowTreeRoot) {
         searchRange = rangeOfContents(m_frame.document());
         if (forward)
             searchRange->setStartAfter(shadowTreeRoot->shadowHost());
         else
             searchRange->setEndBefore(shadowTreeRoot->shadowHost());
 
         resultRange = findPlainText(searchRange.get(), target, options);
@@ skipping 38 matching lines @@
     return spellChecker().isContinuousSpellCheckingEnabled();
 }
 
 void Editor::toggleOverwriteModeEnabled()
 {
     m_overwriteModeEnabled = !m_overwriteModeEnabled;
     frame().selection().setShouldShowBlockCursor(m_overwriteModeEnabled);
 }
 
 } // namespace WebCore