Restart search in page when new text is found.

third_party/WebKit/public/web/WebFrame.h

 /*
  * 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 539 matching lines @@
     //
     // If a match is found, this function will select it (scrolling down to
     // make it visible if needed) and fill in selectionRect with the
     // location of where the match was found (in window coordinates).
     //
     // If no match is found, this function clears all tickmarks and
     // highlighting.
     //
     // Returns true if the search string was found, false otherwise.
     virtual bool find(int identifier,
-                      const WebString& searchText,
-                      const WebFindOptions& options,

[Finnur, 2016/01/29 17:47:50]

Nit: Why delete this?

[dvadym, 2016/02/01 12:41:10]

Style checker in git cl upload says that a name should be omitted according to
style (probably because options is the part of type name WebFindOptions). I've
checked other functions in this file and arguments WebURLRequest,
WebURLLoaderOptions, WebPoint are without names. So it seems to be ok according
to style.

-                      bool wrapWithinFrame,
-                      WebRect* selectionRect) = 0;
+        const WebString& searchText,
+        const WebFindOptions&,
+        bool wrapWithinFrame,
+        WebRect* selectionRect,
+        bool* activeNow) = 0;
 
     // Notifies the frame that we are no longer interested in searching.
     // This will abort any asynchronous scoping effort already under way
     // (see the function scopeStringMatches for details) and erase all
     // tick-marks and highlighting from the previous search.  If
     // clearSelection is true, it will also make sure the end state for the
     // find operation does not leave a selection.  This can occur when the
     // user clears the search string but does not close the find box.
     virtual void stopFinding(bool clearSelection) = 0;
 
@@ skipping 165 matching lines @@
     WebFrame* m_firstChild;
     WebFrame* m_lastChild;
 
     WebFrame* m_opener;
     WebPrivateOwnPtr<OpenedFrameTracker> m_openedFrameTracker;
 };
 
 } // namespace blink
 
 #endif