Add Postscript Printing

printing/printed_document.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 PRINTING_PRINTED_DOCUMENT_H_
 #define PRINTING_PRINTED_DOCUMENT_H_
 
 #include <map>
 #include <memory>
 
@@ skipping 30 matching lines @@
   // originating source and settings.
   PrintedDocument(const PrintSettings& settings,
                   PrintedPagesSource* source,
                   int cookie,
                   base::TaskRunner* blocking_runner);
 
   // Sets a page's data. 0-based. Takes metafile ownership.
   // Note: locks for a short amount of time.
   void SetPage(int page_number,
                std::unique_ptr<MetafilePlayer> metafile,
-#if defined(OS_WIN)

[Vitaly Buka (NO REVIEWS), 2017/01/27 00:38:49]

How is this related to the patch?
PS printing is windows feature, why you enable this for other OSes?

Separate patch?

[rbpotter, 2017/01/27 16:37:21]

Done.

                float shrink,
-#endif  // OS_WIN
                const gfx::Size& paper_size,
                const gfx::Rect& page_rect);
 
   // Retrieves a page. If the page is not available right now, it
   // requests to have this page be rendered and returns NULL.
   // Note: locks for a short amount of time.
   scoped_refptr<PrintedPage> GetPage(int page_number);
 
   // Draws the page in the context.
   // Note: locks for a short amount of time in debug only.
@@ skipping 121 matching lines @@
 
   // All the immutable members.
   const Immutable immutable_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintedDocument);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTED_DOCUMENT_H_