Printing on Windows via PDF

chrome/renderer/printing/print_web_view_helper.h

 // Copyright (c) 2012 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 CHROME_RENDERER_PRINTING_PRINT_WEB_VIEW_HELPER_H_
 #define CHROME_RENDERER_PRINTING_PRINT_WEB_VIEW_HELPER_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 183 matching lines @@
   // Page Printing / Rendering ------------------------------------------------
 
   void OnFramePreparedForPrintPages();
   void PrintPages();
   bool PrintPagesNative(blink::WebFrame* frame,
                         int page_count,
                         const gfx::Size& canvas_size);
   void FinishFramePrinting();
 
   // Prints the page listed in |params|.
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_ANDROID) || \
+    (defined(OS_WIN) && !PRINTING_USE_EMF_METAFILE)
   void PrintPageInternal(const PrintMsg_PrintPage_Params& params,
                          const gfx::Size& canvas_size,
                          blink::WebFrame* frame,
                          Metafile* metafile);
 #else
   void PrintPageInternal(const PrintMsg_PrintPage_Params& params,
                          const gfx::Size& canvas_size,

[Vitaly Buka (NO REVIEWS), 2014/04/24 22:47:58]

Maybe be this branch is PRINTING_USE_EMF_METAFIL || MACOSX and the first is the
rest.

                          blink::WebFrame* frame);
 #endif
 
   // Render the frame for printing.
   bool RenderPagesForPrint(blink::WebLocalFrame* frame,
                            const blink::WebNode& node);
 
   // Platform specific helper function for rendering page(s) to |metafile|.
-#if defined(OS_WIN)
+#if defined(OS_WIN) && PRINTING_USE_EMF_METAFILE

[Vitaly Buka (NO REVIEWS), 2014/04/24 22:47:58]

I don't see how PRINTING_USE_EMF_METAFILE can be used on other then win
platforms

   void RenderPage(const PrintMsg_Print_Params& params,
                   int page_number,
                   blink::WebFrame* frame,
                   bool is_preview,
                   Metafile* metafile,
                   double* scale_factor,
                   gfx::Size* page_size_in_dpi,
                   gfx::Rect* content_area_in_dpi);
 #elif defined(OS_MACOSX)
   void RenderPage(const PrintMsg_Print_Params& params,
@@ skipping 217 matching lines @@
   PrintPreviewContext print_preview_context_;
   bool is_loading_;
   bool is_scripted_preview_delayed_;
   base::WeakPtrFactory<PrintWebViewHelper> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_RENDERER_PRINTING_PRINT_WEB_VIEW_HELPER_H_