Switch the Linux bots on chromium.webkit to use Ninja.

masters/master.chromium.webkit/master_linux_contentshell_latest_cfg.py

 # 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.
 
 
 from master import master_config
 from master.factory import chromium_factory
 
 defaults = {}
 
@@ skipping 19 matching lines @@
 #
 # Content Shell Layouttests
 #
 
 B('WebKit (Content Shell) Linux', 'f_contentshell_linux_rel',
   scheduler='s1_contentshell_webkit_rel')
 
 F('f_contentshell_linux_rel', linux().ChromiumWebkitLatestFactory(
     target='Release',
     tests=[
-      'webkit',
+        'webkit',
     ],
     options=[
-      '--compiler=goma',
-      'content_shell_builder',
+        '--build-tool=ninja',
+        '--compiler=goma',
+        '--',
+        'content_shell_builder',
     ],
     factory_properties={
-      'additional_expectations_files': [
-        ['content', 'shell', 'layout_tests', 'TestExpectations' ],
-      ],
-      'additional_drt_flag': '--dump-render-tree',
-      'archive_webkit_results': True,
-      'test_results_server': 'test-results.appspot.com',
-      'driver_name': 'content_shell'
+        'additional_expectations_files': [
+            ['content', 'shell', 'layout_tests', 'TestExpectations' ],
+        ],
+        'additional_drt_flag': '--dump-render-tree',
+        'archive_webkit_results': True,
+        'test_results_server': 'test-results.appspot.com',
+        'driver_name': 'content_shell',
+        'gclient_env': { 'GYP_GENERATORS': 'ninja' },
     }))
 
 
 def Update(config, active_master, c):
   return helper.Update(c)