Support print preset options for pdf document

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 67 matching lines @@
 class WebURL;
 class WebURLLoader;
 class WebURLRequest;
 class WebView;
 struct WebConsoleMessage;
 struct WebFindOptions;
 struct WebFloatPoint;
 struct WebFloatRect;
 struct WebPoint;
 struct WebPrintParams;
+struct WebPrintPresetOptions;
 struct WebRect;
 struct WebScriptSource;
 struct WebSize;
 struct WebURLLoaderOptions;
 
 template <typename T> class WebVector;
 
 // Frames may be rendered in process ('local') or out of process ('remote').
 // A remote frame is always cross-site; a local frame may be either same-site or
 // cross-site.
@@ skipping 389 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;
+    // Returns true on success and sets the out parameter to the print preset options for the document.
+    virtual bool getPrintPresetOptionsForPlugin(const WebNode&, WebPrintPresetOptions*) = 0;

[dcheng, 2014/10/09 20:45:03]

Actually it looks like this isn't even used yet. Please move this to
WebLocalFrame.h =)

[Nikhil, 2014/10/20 10:04:23]

Done! Yes, this method isn't yet used. It will be used with this CL :
https://codereview.chromium.org/375253002/

 
     // 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
@@ skipping 178 matching lines @@
     WebPrivateOwnPtr<OpenedFrameTracker> m_openedFrameTracker;
 };
 
 #if BLINK_IMPLEMENTATION
 Frame* toCoreFrame(const WebFrame*);
 #endif
 
 } // namespace blink
 
 #endif