Restart search in page when new text is found.

third_party/WebKit/Source/web/TextFinder.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 38 matching lines @@
 class WebLocalFrameImpl;
 
 template <typename T> class WebVector;
 
 class TextFinder final : public NoBaseWillBeGarbageCollectedFinalized<TextFinder> {
 public:
     static PassOwnPtrWillBeRawPtr<TextFinder> create(WebLocalFrameImpl& ownerFrame);
 
     bool find(
         int identifier, const WebString& searchText, const WebFindOptions&,
-        bool wrapWithinFrame, WebRect* selectionRect);
+        bool wrapWithinFrame, WebRect* selectionRect, bool* activeNow = nullptr);
     void stopFindingAndClearSelection();
     void scopeStringMatches(
         int identifier, const WebString& searchText, const WebFindOptions&,
         bool reset);
     void cancelPendingScopingEffort();
     void increaseMatchCount(int identifier, int count);
     void resetMatchCount();
     int findMatchMarkersVersion() const { return m_findMatchMarkersVersion; }
     WebFloatRect activeFindMatchRect();
     void findMatchRects(WebVector<WebFloatRect>&);
@@ skipping 71 matching lines @@
     // Rects are automatically invalidated in case of content size changes,
     // propagating the invalidation to child frames.
     void updateFindMatchRects();
 
     // Append the find-in-page match rects of the current frame to the provided vector.
     void appendFindMatchRects(Vector<WebFloatRect>& frameRects);
 
     // Add a WebKit TextMatch-highlight marker to nodes in a range.
     void addMarker(Range*, bool activeMatch);
 
-    // Sets the markers within a range as active or inactive.
-    void setMarkerActive(Range*, bool active);
+    // Sets the markers within a range as active or inactive. Returns true if at least
+    // one such marker found.
+    bool setMarkerActive(Range*, bool active);
 
     // Removes all markers.
     void unmarkAllTextMatches();
 
     // Returns the ordinal of the first match in the frame specified. This
     // function enumerates the frames, starting with the main frame and up to (but
     // not including) the frame passed in as a parameter and counts how many
     // matches have been found.
     int ordinalOfFirstMatchForFrame(WebLocalFrameImpl*) const;
 
@@ skipping 115 matching lines @@
     // Determines if the rects in the find-in-page matches cache of this frame
     // are invalid and should be recomputed.
     bool m_findMatchRectsAreValid;
 };
 
 } // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::TextFinder::FindMatch);
 
 #endif // TextFinder_h