Convert the utility process image decoder into a Mojo service.

chrome/chrome_utility.gypi

 # Copyright 2014 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': {
     'chrome_utility_sources': [
       'utility/chrome_content_utility_client.cc',
       'utility/chrome_content_utility_client.h',
       'utility/chrome_content_utility_ipc_whitelist.cc',
       'utility/chrome_content_utility_ipc_whitelist.h',
       'utility/cloud_print/bitmap_image.cc',
       'utility/cloud_print/bitmap_image.h',
       'utility/cloud_print/pwg_encoder.cc',
       'utility/cloud_print/pwg_encoder.h',
+      'utility/image_decoder_impl.cc',
+      'utility/image_decoder_impl.h',
       'utility/printing_handler.cc',
       'utility/printing_handler.h',
       'utility/safe_json_parser_handler.cc',
       'utility/safe_json_parser_handler.h',
       'utility/shell_handler_win.cc',
       'utility/shell_handler_win.h',
       'utility/utility_message_handler.h',
     ],
     'chrome_utility_extensions_sources': [
       'utility/extensions/extensions_handler.cc',
@@ skipping 218 matching lines @@
             ],
           },
           'xcode_settings': {
             'MACOSX_DEPLOYMENT_TARGET': '10.10',
           },
         },
       ],
     }],
   ],
 }