gdata: Fix "save as pdf" to work on Google Drive.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 522 matching lines @@
         'browser/chromeos/external_protocol_dialog.cc',
         'browser/chromeos/external_protocol_dialog.h',
         'browser/chromeos/gdata/drive_api_operations.cc',
         'browser/chromeos/gdata/drive_api_operations.h',
         'browser/chromeos/gdata/drive_api_parser.cc',
         'browser/chromeos/gdata/drive_api_parser.h',
         'browser/chromeos/gdata/drive_task_executor.cc',
         'browser/chromeos/gdata/drive_task_executor.h',
         'browser/chromeos/gdata/drive_webapps_registry.cc',
         'browser/chromeos/gdata/drive_webapps_registry.h',
+        'browser/chromeos/gdata/file_write_helper.cc',
+        'browser/chromeos/gdata/file_write_helper.h',
         'browser/chromeos/gdata/gdata_auth_service.cc',
         'browser/chromeos/gdata/gdata_auth_service.h',
         'browser/chromeos/gdata/gdata_cache.cc',
         'browser/chromeos/gdata/gdata_cache.h',
         'browser/chromeos/gdata/gdata_cache_metadata.cc',
         'browser/chromeos/gdata/gdata_cache_metadata.h',
         'browser/chromeos/gdata/gdata_contacts_service.cc',
         'browser/chromeos/gdata/gdata_contacts_service.h',
         'browser/chromeos/gdata/gdata_db.h',
         'browser/chromeos/gdata/gdata_db_factory.cc',
@@ skipping 4942 matching lines @@
           'variables': {
             'jni_gen_dir': 'chrome',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
      },
     ],
   ],
 }