Read CrOS install attributes cache on startup.

chrome/app/policy/cloud_policy_codegen.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,
     'policy_out_dir': '<(SHARED_INTERMEDIATE_DIR)/policy',
     'protoc_out_dir': '<(SHARED_INTERMEDIATE_DIR)/protoc_out',
     'generate_policy_source_script_path':
@@ skipping 83 matching lines @@
         'proto_in_dir': '<(policy_out_dir)/policy',
         'proto_out_dir': '<(proto_path_substr)',
       },
       'dependencies': [
         'cloud_policy_code_generate',
         'cloud_policy_proto_compile',
       ],
       'includes': [ '../../../build/protoc.gypi' ],
     },
     {
-      'target_name': 'cloud_policy_backend_header_compile',
+      'target_name': 'policy_proto_compile',
       'type': 'static_library',
       'sources': [
         '<(proto_rel_path)/chrome_device_policy.proto',
         '<(proto_rel_path)/device_management_backend.proto',
         '<(proto_rel_path)/device_management_local.proto',
+        '<(proto_rel_path)/install_attributes.proto',
         '<(proto_rel_path)/old_generic_format.proto',
       ],
       'variables': {
         'proto_in_dir': '<(proto_rel_path)',
         'proto_out_dir': '<(proto_path_substr)',
       },
       'dependencies': [
         'cloud_policy_code_generate',
       ],
       'includes': [ '../../../build/protoc.gypi' ],
@@ skipping 12 matching lines @@
         '<(policy_constant_header_path)',
         '<(policy_constant_source_path)',
         '<(protobuf_decoder_path)',
       ],
       'include_dirs': [
         '<(DEPTH)',
       ],
       'dependencies': [
         'cloud_policy_code_generate',
         'cloud_policy_proto_compile',
-        'cloud_policy_backend_header_compile',
+        'policy_proto_compile',
         '<(DEPTH)/base/base.gyp:base',
         '<(DEPTH)/third_party/protobuf/protobuf.gyp:protobuf_lite',
       ],
     },
     {
       'target_name': 'policy_test_support',
       'type': 'none',
       'hard_dependency': 1,
       'direct_dependent_settings': {
         'include_dirs': [
@@ skipping 32 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }