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 549 matching lines @@
         'browser/chromeos/gdata/gdata_documents_service.cc',
         'browser/chromeos/gdata/gdata_documents_service.h',
         'browser/chromeos/gdata/gdata_download_observer.cc',
         'browser/chromeos/gdata/gdata_download_observer.h',
         'browser/chromeos/gdata/gdata_errorcode.h',
         'browser/chromeos/gdata/gdata_file_system.cc',
         'browser/chromeos/gdata/gdata_file_system.h',
         'browser/chromeos/gdata/gdata_file_system_interface.h',
         'browser/chromeos/gdata/gdata_file_system_proxy.cc',
         'browser/chromeos/gdata/gdata_file_system_proxy.h',
+        'browser/chromeos/gdata/gdata_file_writing.cc',
+        'browser/chromeos/gdata/gdata_file_writing.h',
         'browser/chromeos/gdata/gdata_files.cc',
         'browser/chromeos/gdata/gdata_files.h',
         'browser/chromeos/gdata/gdata_leveldb.cc',
         'browser/chromeos/gdata/gdata_leveldb.h',
         'browser/chromeos/gdata/gdata_operation_registry.cc',
         'browser/chromeos/gdata/gdata_operation_registry.h',
         'browser/chromeos/gdata/gdata_operation_runner.cc',
         'browser/chromeos/gdata/gdata_operation_runner.h',
         'browser/chromeos/gdata/gdata_operations.cc',
         'browser/chromeos/gdata/gdata_operations.h',
@@ skipping 4909 matching lines @@
           'variables': {
             'jni_gen_dir': 'chrome',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
      },
     ],
   ],
 }