PrintPreview: Honor the print media page size and margin values.

chrome/common/print_messages.h

 // Copyright (c) 2011 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.
 
 // IPC messages for printing.
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 #include <vector>
 
@@ skipping 22 matching lines @@
   double dpi;
   double min_shrink;
   double max_shrink;
   int desired_dpi;
   int document_cookie;
   bool selection_only;
   bool supports_alpha_blend;
   std::string preview_ui_addr;
   int preview_request_id;
   bool is_first_request;
+  bool print_to_pdf;
   bool display_header_footer;
   string16 date;
   string16 title;
   string16 url;
 };
 
 struct PrintMsg_PrintPages_Params {
   PrintMsg_PrintPages_Params();
   ~PrintMsg_PrintPages_Params();
 
@@ skipping 50 matching lines @@
 
   // The print preview ui associated with this request.
   IPC_STRUCT_TRAITS_MEMBER(preview_ui_addr)
 
   // The id of the preview request.
   IPC_STRUCT_TRAITS_MEMBER(preview_request_id)
 
   // True if this is the first preview request.
   IPC_STRUCT_TRAITS_MEMBER(is_first_request)
 
+  // True if print to pdf is requested.
+  IPC_STRUCT_TRAITS_MEMBER(print_to_pdf)
+
   // Specifies if the header and footer should be rendered.
   IPC_STRUCT_TRAITS_MEMBER(display_header_footer)
 
   // Date string to be printed as header if requested by the user.
   IPC_STRUCT_TRAITS_MEMBER(date)
 
   // Title string to be printed as header if requested by the user.
   IPC_STRUCT_TRAITS_MEMBER(title)
 
   // URL string to be printed as footer if requested by the user.
@@ skipping 221 matching lines @@
 
 // Asks the browser to do print preview.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_RequestPrintPreview, bool /* is_modifiable */)
 
 // Notify the browser the number of pages in the print preview document.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetPreviewPageCount,
                     PrintHostMsg_DidGetPreviewPageCount_Params /* params */)
 
 // Notify the browser of the default page layout according to the currently
 // selected printer and page size.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetDefaultPageLayout,
-                    printing::PageSizeMargins /* page layout in points */)
+// |has_custom_page_size_style| is true when the printing frame has a custom
+// page size css otherwise false.
+IPC_MESSAGE_ROUTED2(PrintHostMsg_DidGetDefaultPageLayout,
+                    printing::PageSizeMargins /* page layout in points */,
+                    bool /* has custom page size style */)
 
 // Notify the browser a print preview page has been rendered.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPreviewPage,
                     PrintHostMsg_DidPreviewPage_Params /* params */)
 
 // Asks the browser whether the print preview has been cancelled.
 IPC_SYNC_MESSAGE_ROUTED2_1(PrintHostMsg_CheckForCancel,
                            std::string /* print preview ui address */,
                            int /* request id */,
                            bool /* print preview cancelled */)
@@ skipping 18 matching lines @@
 
 // Tell the browser print preview found the selected printer has invalid
 // settings (which typically caused by disconnected network printer or printer
 // driver is bogus).
 IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewInvalidPrinterSettings,
                     int /* document cookie */)
 
 // Run a nested message loop in the renderer until print preview for
 // window.print() finishes.
 IPC_SYNC_MESSAGE_ROUTED0_0(PrintHostMsg_ScriptedPrintPreview)