Implement checks for distinctiveIdentifier and persistentState in requestMediaKeySystemAccess().

components/cdm/renderer/widevine_key_systems.h

 // 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.
 
 #ifndef COMPONENTS_CDM_RENDERER_WIDEVINE_KEY_SYSTEMS_H_
 #define COMPONENTS_CDM_RENDERER_WIDEVINE_KEY_SYSTEMS_H_
 
 #include <vector>
 
 #include "build/build_config.h"
 #include "media/base/key_system_info.h"
 
 namespace cdm {
 
 enum WidevineCdmType {
   WIDEVINE,
 #if defined(OS_ANDROID)
   WIDEVINE_HR_NON_COMPOSITING,
 #endif  // defined(OS_ANDROID)
 };
 
 void AddWidevineWithCodecs(
     WidevineCdmType widevine_cdm_type,
     media::SupportedCodecs supported_codecs,
+    media::EmeSessionTypeSupport persistent_license_support,
+    media::EmeSessionTypeSupport persistent_release_message_support,
+    media::EmeFeatureSupport persistent_state_support,
+    media::EmeFeatureSupport distinctive_identifier_support,
     std::vector<media::KeySystemInfo>* concrete_key_systems);
 
 }  // namespace cdm
 
 #endif  // COMPONENTS_CDM_RENDERER_WIDEVINE_KEY_SYSTEMS_H_