Printing selection from context menu.

chrome/browser/printing/print_preview_message_handler.h

Index: chrome/browser/printing/print_preview_message_handler.h
diff --git a/chrome/browser/printing/print_preview_message_handler.h b/chrome/browser/printing/print_preview_message_handler.h
index f715f44f0551a5c75626626e3e72238f6346b1a0..4bf6d7840e0d20dc899ce9847d5a2238b6760422 100644
--- a/chrome/browser/printing/print_preview_message_handler.h
+++ b/chrome/browser/printing/print_preview_message_handler.h
@@ -13,6 +13,7 @@ class PrintPreviewUI;
 struct PrintHostMsg_DidGetPreviewPageCount_Params;
 struct PrintHostMsg_DidPreviewDocument_Params;
 struct PrintHostMsg_DidPreviewPage_Params;
+struct PrintHostMsg_RequestPrintPreview_Params;
 
 namespace content {
 class WebContents;
@@ -47,9 +48,8 @@ class PrintPreviewMessageHandler
   PrintPreviewUI* GetPrintPreviewUI();
 
   // Message handlers.
-  void OnRequestPrintPreview(bool source_is_modifiable,
-                             bool webnode_only,
-                             bool source_has_selection);
+  void OnRequestPrintPreview(
+      const PrintHostMsg_RequestPrintPreview_Params& params);
   void OnDidGetDefaultPageLayout(
       const printing::PageSizeMargins& page_layout_in_points,
       const gfx::Rect& printable_area_in_points,