Implement an API to allow passing an "ap" parameter to component updates.

chrome/browser/component_updater/supervised_user_whitelist_installer.cc

 // Copyright 2014 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/component_updater/supervised_user_whitelist_installer.h"
 
 #include <stddef.h>
 #include <map>
 #include <utility>
 
@@ skipping 240 matching lines @@
   bool CanAutoUpdate() const override;
   bool RequiresNetworkEncryption() const override;
   bool OnCustomInstall(const base::DictionaryValue& manifest,
                        const base::FilePath& install_dir) override;
   void ComponentReady(const base::Version& version,
                       const base::FilePath& install_dir,
                       scoped_ptr<base::DictionaryValue> manifest) override;
   base::FilePath GetBaseDirectory() const override;
   void GetHash(std::vector<uint8_t>* hash) const override;
   std::string GetName() const override;
+  std::string GetAp() const override;
 
   std::string crx_id_;
   std::string name_;
   RawWhitelistReadyCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserWhitelistComponentInstallerTraits);
 };
 
 bool SupervisedUserWhitelistComponentInstallerTraits::VerifyInstallation(
     const base::DictionaryValue& manifest,
@@ skipping 40 matching lines @@
 
 void SupervisedUserWhitelistComponentInstallerTraits::GetHash(
     std::vector<uint8_t>* hash) const {
   *hash = SupervisedUserWhitelistInstaller::GetHashFromCrxId(crx_id_);
 }
 
 std::string SupervisedUserWhitelistComponentInstallerTraits::GetName() const {
   return name_;
 }
 
+std::string SupervisedUserWhitelistComponentInstallerTraits::GetAp() const {
+  return std::string();
+}
+
 class SupervisedUserWhitelistInstallerImpl
     : public SupervisedUserWhitelistInstaller,
       public ProfileAttributesStorage::Observer {
  public:
   SupervisedUserWhitelistInstallerImpl(
       ComponentUpdateService* cus,
       ProfileAttributesStorage* profile_attributes_storage,
       PrefService* local_state);
   ~SupervisedUserWhitelistInstallerImpl() override {}
 
@@ skipping 294 matching lines @@
 
 // static
 void SupervisedUserWhitelistInstaller::TriggerComponentUpdate(
     OnDemandUpdater* updater,
     const std::string& crx_id) {
   const bool result = updater->OnDemandUpdate(crx_id);
   DCHECK(result);
 }
 
 }  // namespace component_updater