[Experimental] Supporting OOPIF printing

third_party/WebKit/public/web/WebPrintParams.h

Index: third_party/WebKit/public/web/WebPrintParams.h
diff --git a/third_party/WebKit/public/web/WebPrintParams.h b/third_party/WebKit/public/web/WebPrintParams.h
index 800f2f87ea299a7fd0d0f1dadbd14d75554752a9..5ffff93c535ba9d57eb6b365d8ee65c7137ca1a5 100644
--- a/third_party/WebKit/public/web/WebPrintParams.h
+++ b/third_party/WebKit/public/web/WebPrintParams.h
@@ -58,16 +58,20 @@ struct WebPrintParams {
   // printable area. (This is used only by plugin printing).
   WebPrintScalingOption printScalingOption;
 
+  int rootFrameRoutingId;
+
   WebPrintParams()
       : printerDPI(72),
-        printScalingOption(WebPrintScalingOptionFitToPrintableArea) {}
+        printScalingOption(WebPrintScalingOptionFitToPrintableArea),
+        rootFrameRoutingId(0) {}
 
   WebPrintParams(const WebSize& paperSize)
       : printContentArea(WebRect(0, 0, paperSize.width, paperSize.height)),
         printableArea(WebRect(0, 0, paperSize.width, paperSize.height)),
         paperSize(paperSize),
         printerDPI(72),
-        printScalingOption(WebPrintScalingOptionSourceSize) {}
+        printScalingOption(WebPrintScalingOptionSourceSize),
+        rootFrameRoutingId(0) {}
 
   WebPrintParams(const WebRect& printContentArea,
                  const WebRect& printableArea,
@@ -78,7 +82,8 @@ struct WebPrintParams {
         printableArea(printableArea),
         paperSize(paperSize),
         printerDPI(printerDPI),
-        printScalingOption(printScalingOption) {}
+        printScalingOption(printScalingOption),
+        rootFrameRoutingId(0) {}
 };
 
 }  // namespace blink