Read CrOS install attributes cache on startup.

chrome/browser/policy/browser_policy_connector.cc

 // 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.
 
 #include "chrome/browser/policy/browser_policy_connector.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
@@ skipping 110 matching lines @@
 
   if (!device_management_service_.get()) {
     device_management_service_.reset(
         new DeviceManagementService(GetDeviceManagementUrl()));
   }
 
 #if defined(OS_CHROMEOS)
   chromeos::CryptohomeLibrary* cryptohome =
       chromeos::CrosLibrary::Get()->GetCryptohomeLibrary();
   install_attributes_.reset(new EnterpriseInstallAttributes(cryptohome));
+  install_attributes_->ReadCacheFile(
+      FilePath(policy::EnterpriseInstallAttributes::kCacheFilePath));
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (!command_line->HasSwitch(switches::kDisableCloudPolicyService)) {
     scoped_ptr<DeviceCloudPolicyStoreChromeOS> device_cloud_policy_store(
         new DeviceCloudPolicyStoreChromeOS(
             chromeos::DeviceSettingsService::Get(),
             install_attributes_.get()));
     device_cloud_policy_manager_.reset(
         new DeviceCloudPolicyManagerChromeOS(
             device_cloud_policy_store.Pass(),
@@ skipping 639 matching lines @@
     return new AsyncPolicyProvider(loader.Pass());
   } else {
     return NULL;
   }
 #else
   return NULL;
 #endif
 }
 
 }  // namespace policy