Print directly to CUPS using the IPP APIs

printing/printing.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 111 matching lines @@
             # of the print backend and enables a custom implementation instead.
             'PRINT_BACKEND_AVAILABLE',
           ],
           'sources': [
             'backend/win_helper.cc',
             'backend/win_helper.h',
           ],
         }],
         ['chromeos==1',{
           'sources': [
+            'printed_document_chromeos.cc',
             'printing_context_no_system_dialog.cc',
             'printing_context_no_system_dialog.h',
           ],
         }],
         ['use_cups==1', {
           'dependencies': [
             'cups',
           ],
           'variables': {
             'cups_version': '<!(python cups_config_helper.py --api-version <(sysroot))',
@@ skipping 30 matching lines @@
                 'backend/cups_connection.cc',
                 'backend/cups_connection.h',
                 'backend/cups_deleters.cc',
                 'backend/cups_deleters.h',
                 'backend/cups_ipp_util.cc',
                 'backend/cups_ipp_util.h',
                 'backend/cups_printer.cc',
                 'backend/cups_printer.h',
                 'backend/print_backend_cups_ipp.cc',
                 'backend/print_backend_cups_ipp.h',
+                'printing_context_chromeos.cc',
+                'printing_context_chromeos.h',
               ],
             }, { # chromeos==0
               'sources': [
                 'backend/cups_helper.cc',
                 'backend/cups_helper.h',
                 'backend/print_backend_cups.cc',
               ],
             }],
           ],
           'defines': [
             # PRINT_BACKEND_AVAILABLE disables the default dummy implementation
             # of the print backend and enables a custom implementation instead.
             'PRINT_BACKEND_AVAILABLE',
           ],
         }],
         ['OS=="linux" and chromeos==1', {
           'defines': [
             # PRINT_BACKEND_AVAILABLE disables the default dummy implementation
             # of the print backend and enables a custom implementation instead.
             'PRINT_BACKEND_AVAILABLE',
           ],
           'sources': [
             'backend/print_backend_chromeos.cc',
+            'printed_document_chromeos.cc',
           ],
         }],
         ['OS=="linux" and chromeos==0', {
           'sources': [
             'printed_document_linux.cc',
             'printing_context_linux.cc',
             'printing_context_linux.h',
           ],
         }],
         ['OS=="android"', {
@@ skipping 135 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'printing_unittests.isolate',
           ],
         },
       ],
     }],
   ]
 }