Remove WebView::setScrollbarColors

public/web/WebView.h

 /*
  * Copyright (C) 2009, 2010, 2011, 2012 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 444 matching lines @@
     // specified hash.
     BLINK_EXPORT static void updateVisitedLinkState(unsigned long long hash);
 
     // Tells all WebView instances to update the visited state for all
     // their links.
     BLINK_EXPORT static void resetVisitedLinkState();
 
 
     // Custom colors -------------------------------------------------------
 
-    virtual void setScrollbarColors(unsigned inactiveColor,
-                                    unsigned activeColor,
-                                    unsigned trackColor) = 0;
-
     virtual void setSelectionColors(unsigned activeBackgroundColor,
                                     unsigned activeForegroundColor,
                                     unsigned inactiveBackgroundColor,
                                     unsigned inactiveForegroundColor) = 0;
 
     // Injected style ------------------------------------------------------
 
     // Treats |sourceCode| as a CSS author style sheet and injects it into all Documents whose URLs match |patterns|,
     // in the frames specified by the last argument.
     BLINK_EXPORT static void injectStyleSheet(const WebString& sourceCode, const WebVector<WebString>& patterns, StyleInjectionTarget);
@@ skipping 42 matching lines @@
 
     // Testing functionality for TestRunner ---------------------------------
 
 protected:
     ~WebView() {}
 };
 
 } // namespace WebKit
 
 #endif