Support print preset options for pdf document

public/web/WebLocalFrame.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include "WebFrame.h"
 
 namespace blink {
 
 class WebScriptExecutionCallback;
+struct WebPrintPresetOptions;
 
 // Interface for interacting with in process frames. This contains methods that
 // require interacting with a frame's document.
 // FIXME: Move lots of methods from WebFrame in here.
 class WebLocalFrame : public WebFrame {
 public:
     // Creates a WebFrame. Delete this WebFrame by calling WebFrame::close().
     // It is valid to pass a null client pointer.
     BLINK_EXPORT static WebLocalFrame* create(WebFrameClient*);
 
@@ skipping 38 matching lines @@
     virtual void addStyleSheetByURL(const WebString& url) = 0;
     virtual void navigateToSandboxedMarkup(const WebData& markup) = 0;
 
 
     // Orientation Changes ----------------------------------------------------
 
     // Notify the frame that the screen orientation has changed.
     virtual void sendOrientationChangeEvent() = 0;
 
 
+    // Printing ------------------------------------------------------------
+
+    // Returns true on success and sets the out parameter to the print preset options for the document.
+    virtual bool getPrintPresetOptionsForPlugin(const WebNode&, WebPrintPresetOptions*) = 0;
+
+
     // Scripting --------------------------------------------------------------
     // Executes script in the context of the current page and returns the value
     // that the script evaluated to with callback. Script execution can be
     // suspend.
     virtual void requestExecuteScriptAndReturnValue(const WebScriptSource&,
         bool userGesture, WebScriptExecutionCallback*) = 0;
 
     // worldID must be > 0 (as 0 represents the main world).
     // worldID must be < EmbedderWorldIdLimit, high number used internally.
     virtual void requestExecuteScriptInIsolatedWorld(
@@ skipping 13 matching lines @@
 
     // Moves the selection extent point. This function does not allow the
     // selection to collapse. If the new extent is set to the same position as
     // the current base, this function will do nothing.
     virtual void moveRangeSelectionExtent(const WebPoint&) = 0;
 };
 
 } // namespace blink
 
 #endif // WebLocalFrame_h