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

chrome/browser/component_updater/widevine_cdm_component_installer.cc

 // Copyright (c) 2013 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/widevine_cdm_component_installer.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
 #include <string>
@@ skipping 231 matching lines @@
   bool VerifyInstallation(
       const base::DictionaryValue& manifest,
       const base::FilePath& install_dir) const override;
   void ComponentReady(
       const base::Version& version,
       const base::FilePath& path,
       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;
 
   // Checks and updates CDM adapter if necessary to make sure the latest CDM
   // adapter is always used.
   // Note: The component is ready when CDM is present, but the CDM won't be
   // registered until the adapter is copied by this function (see
   // VerifyInstallation).
   void UpdateCdmAdapter(const base::Version& cdm_version,
                         const base::FilePath& cdm_install_dir,
                         scoped_ptr<base::DictionaryValue> manifest);
 
@@ skipping 54 matching lines @@
 
 void WidevineCdmComponentInstallerTraits::GetHash(
     std::vector<uint8_t>* hash) const {
   hash->assign(kSha2Hash, kSha2Hash + arraysize(kSha2Hash));
 }
 
 std::string WidevineCdmComponentInstallerTraits::GetName() const {
   return kWidevineCdmDisplayName;
 }
 
+std::string WidevineCdmComponentInstallerTraits::GetAp() const {
+  return std::string();
+}
+
 void WidevineCdmComponentInstallerTraits::UpdateCdmAdapter(
     const base::Version& cdm_version,
     const base::FilePath& cdm_install_dir,
     scoped_ptr<base::DictionaryValue> manifest) {
   const base::FilePath adapter_version_path =
       GetPlatformDirectory(cdm_install_dir).AppendASCII(kCdmAdapterVersionName);
   const base::FilePath adapter_install_path =
       GetPlatformDirectory(cdm_install_dir)
           .AppendASCII(kWidevineCdmAdapterFileName);
 
@@ skipping 42 matching lines @@
   scoped_ptr<ComponentInstallerTraits> traits(
       new WidevineCdmComponentInstallerTraits);
   // |cus| will take ownership of |installer| during installer->Register(cus).
   DefaultComponentInstaller* installer =
       new DefaultComponentInstaller(std::move(traits));
   installer->Register(cus, base::Closure());
 #endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
 }
 
 }  // namespace component_updater