Invalidate paint of tickmarks on document change

Source/core/frame/FrameView.h

 /*
    Copyright (C) 1997 Martin Jones (mjones@kde.org)
              (C) 1998 Waldo Bastian (bastian@kde.org)
              (C) 1998, 1999 Torben Weis (weis@kde.org)
              (C) 1999 Lars Knoll (knoll@kde.org)
              (C) 1999 Antti Koivisto (koivisto@kde.org)
    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
@@ skipping 322 matching lines @@
     virtual void willRemoveScrollbar(Scrollbar*, ScrollbarOrientation) override;
 
     // FIXME: This should probably be renamed as the 'inSubtreeLayout' parameter
     // passed around the FrameView layout methods can be true while this returns
     // false.
     bool isSubtreeLayout() const { return !m_layoutSubtreeRoots.isEmpty(); }
 
     // Sets the tickmarks for the FrameView, overriding the default behavior
     // which is to display the tickmarks corresponding to find results.
     // If |m_tickmarks| is empty, the default behavior is restored.
-    void setTickmarks(const Vector<IntRect>& tickmarks) { m_tickmarks = tickmarks; }
+    void setTickmarks(const Vector<IntRect>& tickmarks)
+    {
+        m_tickmarks = tickmarks;
+        invalidatePaintOfTickmarks();
+    }
+
+    void invalidatePaintOfTickmarks() const;

[chrishtr, 2015/04/17 23:21:42]

invalidatePaintForTickmarks

[Xianzhu, 2015/04/18 02:13:48]

Done.

 
     // Since the compositor can resize the viewport due to top controls and
     // commit scroll offsets before a WebView::resize occurs, we need to adjust
     // our scroll extents to prevent clamping the scroll offsets.
     void setTopControlsViewportAdjustment(float);
 
     virtual IntPoint maximumScrollPosition() const override;
 
     // ScrollableArea interface
     virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&) override;
@@ skipping 519 matching lines @@
     static const unsigned visualPixelThreshold = 32 * 32;
     if (m_visuallyNonEmptyPixelCount > visualPixelThreshold)
         setIsVisuallyNonEmpty();
 }
 
 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFrameView());
 
 } // namespace blink
 
 #endif // FrameView_h