Support print preset options for pdf document

public/web/WebLocalFrame.h

Index: public/web/WebLocalFrame.h
diff --git a/public/web/WebLocalFrame.h b/public/web/WebLocalFrame.h
index 328e832e2c8bb2d0519f51513cffc0ef079bdb03..97bf5123260f799747c6c22009e42f4574b118b3 100644
--- a/public/web/WebLocalFrame.h
+++ b/public/web/WebLocalFrame.h
@@ -10,6 +10,7 @@
 namespace blink {
 
 class WebScriptExecutionCallback;
+struct WebPrintPresetOptions;
 
 // Interface for interacting with in process frames. This contains methods that
 // require interacting with a frame's document.
@@ -68,6 +69,12 @@ public:
     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