Add functionality to download files from GCS, and include them in the Chromoting isolate.

testing/chromoting/integration_tests.gyp

 # Copyright (c) 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': {
     'run_multi_machine_tests%': '0',
   },
 
   'conditions': [
@@ skipping 29 matching lines @@
       ],
       'targets': [
         {
           'target_name': 'chromoting_integration_tests_run',
           'includes': [
             './dependencies.gypi',
           ],
           'sources': [
             'chromoting_integration_tests.isolate',
           ],
+          'actions': [
+            {
+              'action_name': 'download_test_files',
+              'variables': {
+                'dl_files_script': './download_test_files.py',
+                'files_list': './chromoting_test_files.txt',
+                'output_folder': './',
+              },
+              'inputs': [
+                '<(files_list)',
+              ],
+              'outputs': [
+                '<(output_folder)',
+              ],
+              'action': [
+                'python',
+                '<(dl_files_script)',
+                '--files',
+                '<(files_list)',
+                '--output_folder',
+                '<(output_folder)',
+              ],
+              'message': 'Downloading required Remoting test files.',
+            },
+          ],
         },  # target_name: 'chromoting_integration_tests_run'
       ],
     }],
   ],
 }