app_shell: Shut down in response to power button.

chromeos/chromeos.gyp

 # 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': {
     'chromium_code': 1,
   },
   'includes': [
     'chromeos_tools.gypi'
@@ skipping 473 matching lines @@
         'system/mock_statistics_provider.cc',
         'system/mock_statistics_provider.h',
       ],
       'include_dirs': [
         '..',
       ],
     },
     {
       'target_name': 'chromeos_test_support_without_gmock',
       'type': 'static_library',
+      'export_dependent_settings': [
+        # fake_power_manager_client.h includes pb.h files.
+        'power_manager_proto',
+      ],
       'dependencies': [
         '../build/linux/system.gyp:dbus',
         '../crypto/crypto.gyp:crypto',
         '../dbus/dbus.gyp:dbus',
         'chromeos',
         'cryptohome_proto',
         'power_manager_proto',
       ],
       'sources': [
         'dbus/fake_cros_disks_client.cc',
@@ skipping 151 matching lines @@
       ],
       'variables': {
         'proto_in_dir': '../third_party/cros_system_api/dbus/cryptohome',
         'proto_out_dir': 'chromeos/cryptohome',
       },
       'includes': ['../build/protoc.gypi'],
     },
 
   ],
 }