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

media/base/cdm_factory.h

Index: media/base/cdm_factory.h
diff --git a/media/base/cdm_factory.h b/media/base/cdm_factory.h
index 0ff84135c626998c0e4d66db2c0e47d4f41f0278..918e623b10fd6aa067f44e35ac6c687c90a2fc79 100644
--- a/media/base/cdm_factory.h
+++ b/media/base/cdm_factory.h
@@ -22,6 +22,8 @@ class MEDIA_EXPORT CdmFactory {
 
   virtual scoped_ptr<MediaKeys> Create(
       const std::string& key_system,
+      bool allow_distinctive_identifier,
+      bool allow_persistent_state,
       const GURL& security_origin,
       const SessionMessageCB& session_message_cb,
       const SessionClosedCB& session_closed_cb,