FindInPage: fix wrong match ordinal after javascript update.

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 361 matching lines @@
     // If the Find function found a match it will have stored where the
     // match was found in m_activeSelectionRect on the current frame. If we
     // find this rect during scoping it means we have found the active
     // tickmark.
     bool foundActiveMatch = false;
     if (m_locatingActiveRect && (activeSelectionRect == resultBounds)) {
       // We have found the active tickmark frame.
       m_currentActiveMatchFrame = true;
       foundActiveMatch = true;
       // We also know which tickmark is active now.
-      m_activeMatchIndex = matchCount - 1;
+      m_activeMatchIndex = m_totalMatchCount + matchCount - 1;
       // To stop looking for the active tickmark, we set this flag.
       m_locatingActiveRect = false;
 
       // Notify browser of new location for the selected rectangle.
       reportFindInPageSelection(
           ownerFrame().frameView()->contentsToRootFrame(resultBounds),
           m_activeMatchIndex + 1, identifier);
     }
 
     ownerFrame().frame()->document()->markers().addTextMatchMarker(
@@ skipping 376 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