Fix search restart after zero entries.

third_party/WebKit/Source/web/TextFinder.cpp

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 189 matching lines @@
         m_activeMatchIndex = 0;
       else if (m_activeMatchIndex < 0)
         m_activeMatchIndex = m_lastMatchCount - 1;
     }
     WebRect selectionRect = ownerFrame().frameView()->contentsToRootFrame(
         m_activeMatch->boundingBox());
     reportFindInPageSelection(selectionRect, m_activeMatchIndex + 1,
                               identifier);
   }
 
+  // We found something, so the result of the previous scoping may be outdated.
+  m_lastFindRequestCompletedWithNoMatches = false;
+
   return true;
 }
 
 void TextFinder::clearActiveFindMatch() {
   m_currentActiveMatchFrame = false;
   setMarkerActive(m_activeMatch.get(), false);
   resetActiveMatch();
 }
 
 void TextFinder::stopFindingAndClearSelection() {
@@ skipping 546 matching lines @@
 
 DEFINE_TRACE(TextFinder) {
   visitor->trace(m_ownerFrame);
   visitor->trace(m_activeMatch);
   visitor->trace(m_resumeScopingFromRange);
   visitor->trace(m_deferredScopingWork);
   visitor->trace(m_findMatchesCache);
 }
 
 }  // namespace blink