Check InitDateType is supported by key system when creating session

media/blink/cdm_session_adapter.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 "media/blink/cdm_session_adapter.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/stl_util.h"
@@ skipping 11 matching lines @@
 const char kDot[] = ".";
 
 CdmSessionAdapter::CdmSessionAdapter() : weak_ptr_factory_(this) {
 }
 
 CdmSessionAdapter::~CdmSessionAdapter() {}
 
 bool CdmSessionAdapter::Initialize(CdmFactory* cdm_factory,
                                    const std::string& key_system,
                                    const GURL& security_origin) {
+  key_system_ = key_system;
   key_system_uma_prefix_ =
       kMediaEME + GetKeySystemNameForUMA(key_system) + kDot;
 
   base::WeakPtr<CdmSessionAdapter> weak_this = weak_ptr_factory_.GetWeakPtr();
   media_keys_ = cdm_factory->Create(
       key_system, security_origin,
       base::Bind(&CdmSessionAdapter::OnSessionMessage, weak_this),
       base::Bind(&CdmSessionAdapter::OnSessionClosed, weak_this),
       base::Bind(&CdmSessionAdapter::OnSessionError, weak_this),
       base::Bind(&CdmSessionAdapter::OnSessionKeysChange, weak_this),
@@ skipping 61 matching lines @@
 
 void CdmSessionAdapter::RemoveSession(const std::string& session_id,
                                       scoped_ptr<SimpleCdmPromise> promise) {
   media_keys_->RemoveSession(session_id, promise.Pass());
 }
 
 CdmContext* CdmSessionAdapter::GetCdmContext() {
   return media_keys_->GetCdmContext();
 }
 
+const std::string& CdmSessionAdapter::GetKeySystem() const {
+  return key_system_;
+}
+
 const std::string& CdmSessionAdapter::GetKeySystemUMAPrefix() const {
   return key_system_uma_prefix_;
 }
 
 void CdmSessionAdapter::OnSessionMessage(
     const std::string& session_id,
     MediaKeys::MessageType message_type,
     const std::vector<uint8>& message,
     const GURL& /* legacy_destination_url */) {
   WebContentDecryptionModuleSessionImpl* session = GetSession(session_id);
@@ skipping 43 matching lines @@
 WebContentDecryptionModuleSessionImpl* CdmSessionAdapter::GetSession(
     const std::string& session_id) {
   // Since session objects may get garbage collected, it is possible that there
   // are events coming back from the CDM and the session has been unregistered.
   // We can not tell if the CDM is firing events at sessions that never existed.
   SessionMap::iterator session = sessions_.find(session_id);
   return (session != sessions_.end()) ? session->second.get() : NULL;
 }
 
 }  // namespace media