Make it possible to override the tickmarks for a WebFrame.

public/web/WebFrame.h

Index: public/web/WebFrame.h
diff --git a/public/web/WebFrame.h b/public/web/WebFrame.h
index 26e7c3e07ddd4d3ef916b590efa12df90547d527..1ff4e9da391251014d1bec48bf570c22b3eb35e6 100644
--- a/public/web/WebFrame.h
+++ b/public/web/WebFrame.h
@@ -595,6 +595,12 @@ public:
     virtual int selectNearestFindMatch(const WebFloatPoint&,
                                        WebRect* selectionRect) = 0;
 
+
+    // Set the tickmarks for the frame. This will override the default tickmarks
+    // generated by find results. If this is called with an empty array, the
+    // default behavior will be restored.
+    virtual void setTickmarks(const WebVector<WebRect>&) = 0;
+
     // OrientationChange event ---------------------------------------------
 
     // Orientation is the interface orientation in degrees.