[Blink] Support NumCopies print preset

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 482 matching lines @@
     virtual float printPage(int pageToPrint, WebCanvas*) = 0;
 
     // Reformats the WebFrame for screen display.
     virtual void printEnd() = 0;
 
     // If the frame contains a full-frame plugin or the given node refers to a
     // plugin whose content indicates that printed output should not be scaled,
     // return true, otherwise return false.
     virtual bool isPrintScalingDisabledForPlugin(const WebNode& = WebNode()) = 0;
 
+    // Returns the number of copies to be printed.
+    virtual int getPrintCopiesForPlugin(const WebNode& = WebNode()) = 0;
+
     // CSS3 Paged Media ----------------------------------------------------
 
     // Returns true if page box (margin boxes and page borders) is visible.
     virtual bool isPageBoxVisible(int pageIndex) = 0;
 
     // Returns true if the page style has custom size information.
     virtual bool hasCustomPageSizeStyle(int pageIndex) = 0;
 
     // Returns the preferred page size and margins in pixels, assuming 96
     // pixels per inch. pageSize, marginTop, marginRight, marginBottom,
@@ skipping 181 matching lines @@
     WebPrivateOwnPtr<OpenedFrameTracker> m_openedFrameTracker;
 };
 
 #if BLINK_IMPLEMENTATION
 blink::Frame* toWebCoreFrame(const WebFrame*);
 #endif
 
 } // namespace blink
 
 #endif