Printing on Windows via PDF

chrome/utility/chrome_content_utility_client.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_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
 #define CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 38 matching lines @@
  private:
   // IPC message handlers.
   void OnUnpackExtension(const base::FilePath& extension_path,
                          const std::string& extension_id,
                          int location, int creation_flags);
   void OnUnpackWebResource(const std::string& resource_data);
   void OnParseUpdateManifest(const std::string& xml);
   void OnDecodeImage(const std::vector<unsigned char>& encoded_data);
   void OnDecodeImageBase64(const std::string& encoded_data);
   void OnRenderPDFPagesToMetafile(
-      base::PlatformFile pdf_file,
+      IPC::PlatformFileForTransit pdf_transit,
       const base::FilePath& metafile_path,
       const printing::PdfRenderSettings& settings,
       const std::vector<printing::PageRange>& page_ranges);
   void OnRenderPDFPagesToPWGRaster(
       IPC::PlatformFileForTransit pdf_transit,
       const printing::PdfRenderSettings& settings,
       const printing::PwgRasterSettings& bitmap_settings,
       IPC::PlatformFileForTransit bitmap_transit);
   void OnRobustJPEGDecodeImage(
       const std::vector<unsigned char>& encoded_data);
   void OnParseJSON(const std::string& json);
 
 #if defined(OS_CHROMEOS)
   void OnCreateZipFile(const base::FilePath& src_dir,
                        const std::vector<base::FilePath>& src_relative_paths,
                        const base::FileDescriptor& dest_fd);
 #endif  // defined(OS_CHROMEOS)
 
 #if defined(OS_WIN)
   // Helper method for Windows.
   // |highest_rendered_page_number| is set to -1 on failure to render any page.
+  // |page_ranges| is both input and output. If supplied as input, only the
+  // specified pages will be rendered. If an empty vector is supplied it will
+  // be filled with a range of all pages that were rendered.
   bool RenderPDFToWinMetafile(
       base::PlatformFile pdf_file,
       const base::FilePath& metafile_path,
       const printing::PdfRenderSettings& settings,
-      const std::vector<printing::PageRange>& page_ranges,
+      std::vector<printing::PageRange>* page_ranges,
       int* highest_rendered_page_number,
       double* scale_factor);
 #endif   // defined(OS_WIN)
 
   bool RenderPDFPagesToPWGRaster(
       base::PlatformFile pdf_file,
       const printing::PdfRenderSettings& settings,
       const printing::PwgRasterSettings& bitmap_settings,
       base::PlatformFile bitmap_file);
 
@@ skipping 48 matching lines @@
   bool filter_messages_;
   // A list of message_ids to filter.
   std::set<int> message_id_whitelist_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentUtilityClient);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_