Implementation of the device attributes API.

chrome/browser/extensions/api/enterprise_device_attributes/enterprise_device_attributes_api.cc

+// Copyright (c) 2015 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/extensions/api/enterprise_device_attributes/enterprise_device_attributes_api.h"
+
+#include "base/values.h"
+#include "chrome/browser/app_mode/app_mode_utils.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
+#include "chrome/browser/chromeos/profiles/profile_helper.h"
+#include "chrome/browser/profiles/profile.h"
+#include "components/user_manager/user_manager.h"
+
+namespace extensions {
+
+namespace {
+
+// Checks for the current browser context if the user is affiliated and the
+// device is enterprise managed.
+bool IsPermittedToGetDeviceId(content::BrowserContext* context) {
+  policy::BrowserPolicyConnectorChromeOS* connector =
+      g_browser_process->platform_part()->browser_policy_connector_chromeos();
+
+  const user_manager::User* user = chromeos::ProfileHelper::Get()->
+      GetUserByProfile(Profile::FromBrowserContext(context));
+
+  return connector->IsEnterpriseManaged() && connector->GetUserAffiliation(
+      user->email()) == policy::USER_AFFILIATION_MANAGED;
+}
+
+// Returns the directory device id for the permitted extensions or an empty
+// string.
+std::string GetDirectoryDeviceId(content::BrowserContext* context) {
+  return IsPermittedToGetDeviceId(context) ? g_browser_process->
+      platform_part()->browser_policy_connector_chromeos()->
+      GetDirectoryApiID() : std::string();
+}
+
+} //  namespace
+
+EnterpriseDeviceAttributesGetDirectoryDeviceIdFunction::
+    EnterpriseDeviceAttributesGetDirectoryDeviceIdFunction() {
+}
+
+EnterpriseDeviceAttributesGetDirectoryDeviceIdFunction::
+    ~EnterpriseDeviceAttributesGetDirectoryDeviceIdFunction() {
+}
+
+bool EnterpriseDeviceAttributesGetDirectoryDeviceIdFunction::RunAsync() {
+  std::string directoryDeviceId = GetDirectoryDeviceId(browser_context());

[pneubeck (no reviews), 2015/07/23 12:53:21]

s/directoryDeviceId/directory_device_id/
s/std::string/const std::string/

[Polina Bondarenko, 2015/07/24 16:47:58]

Done, renamed to device_id.

+  scoped_ptr<base::Value> result(new base::StringValue(directoryDeviceId));

[pneubeck (no reviews), 2015/07/23 12:53:21]

please use the generated result wrappers.
they should be in 
out/Release/gen/chrome/common/extensions/api/enterprise_device_attributes.h

that you can include by
#include "chrome/common/extensions/api/enterprise_device_attributes.h"

[Polina Bondarenko, 2015/07/24 16:47:58]

Done, but the ListValue is returned now, is it ok?

+  SetResult(result.release());
+  SendResponse(true);

[pneubeck (no reviews), 2015/07/23 12:53:21]

once you changed to the other base class, you'll return the result using
  return RespondNow(...);

[Polina Bondarenko, 2015/07/24 16:47:58]

Done.

+  return true;
+}
+
+} // namespace extensions