Block platform verification and file IO in the CDM adapter if the CDM configuration disallows them.

media/cdm/proxy_decryptor.cc

Index: media/cdm/proxy_decryptor.cc
diff --git a/media/cdm/proxy_decryptor.cc b/media/cdm/proxy_decryptor.cc
index d1be9d8b204fe2b99d4dbf3a368cc733ea8af852..ac96979efca00a9cac416fcc33552e83278e68e6 100644
--- a/media/cdm/proxy_decryptor.cc
+++ b/media/cdm/proxy_decryptor.cc
@@ -195,9 +195,16 @@ scoped_ptr<MediaKeys> ProxyDecryptor::CreateMediaKeys(
     CdmFactory* cdm_factory,
     const std::string& key_system,
     const GURL& security_origin) {
+  // TODO(sandersd): Trigger permissions check here and use it to determine
+  // distinctive identifier support, instead of always requiring the
+  // permission. http://crbug.com/455271
+  bool allow_distinctive_identifier = true;
+  bool allow_persistent_state = true;
   base::WeakPtr<ProxyDecryptor> weak_this = weak_ptr_factory_.GetWeakPtr();
   return cdm_factory->Create(
       key_system,
+      allow_distinctive_identifier,
+      allow_persistent_state,
       security_origin,
       base::Bind(&ProxyDecryptor::OnSessionMessage, weak_this),
       base::Bind(&ProxyDecryptor::OnSessionClosed, weak_this),