Improve formatting of accessibility tests that dump the tree.

chrome/chrome_tests.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.
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 2852 matching lines @@
         'test/data/webui/ntp4.js',
         'test/data/webui/print_preview.h',
         'test/data/webui/print_preview.cc',
         'test/data/webui/print_preview.js',
         'test/gpu/gpu_feature_browsertest.cc',
         # TODO(craig): Rename this and run from base_unittests when the test
         # is safe to run there. See http://crbug.com/78722 for details.
         '../base/files/file_path_watcher_browsertest.cc',
         '../content/app/startup_helper_win.cc',
         '../content/browser/accessibility/dump_accessibility_tree_browsertest.cc',
+        '../content/browser/accessibility/dump_accessibility_tree_helper.cc',
         '../content/browser/accessibility/dump_accessibility_tree_helper_mac.mm',
         '../content/browser/accessibility/dump_accessibility_tree_helper_win.cc',
         '../content/browser/accessibility/renderer_accessibility_browsertest.cc',
         '../content/browser/child_process_security_policy_browsertest.cc',
         '../content/browser/device_orientation/device_orientation_browsertest.cc',
         '../content/browser/download/mhtml_generation_browsertest.cc',
         '../content/browser/fileapi/file_system_browsertest.cc',
         '../content/browser/in_process_webkit/dom_storage_browsertest.cc',
         '../content/browser/in_process_webkit/indexed_db_browsertest.cc',
         '../content/browser/indexed_db/idbbindingutilities_browsertest.cc',
@@ skipping 1825 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }