Encrypted Media: Implement IPC based SetCdm().

content/renderer/media/android/proxy_media_keys.cc

 // Copyright 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 "content/renderer/media/android/proxy_media_keys.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "content/renderer/media/android/renderer_media_player_manager.h"
 #include "content/renderer/media/crypto/key_systems.h"
 
 namespace content {
 
+int ProxyMediaKeys::next_cdm_id_ =
+    RendererMediaPlayerManager::kInvalidCdmId + 1;
+
 ProxyMediaKeys::ProxyMediaKeys(
     RendererMediaPlayerManager* manager,
-    int cdm_id,
     const media::SessionCreatedCB& session_created_cb,
     const media::SessionMessageCB& session_message_cb,
     const media::SessionReadyCB& session_ready_cb,
     const media::SessionClosedCB& session_closed_cb,
     const media::SessionErrorCB& session_error_cb)
     : manager_(manager),
-      cdm_id_(cdm_id),
+      cdm_id_(next_cdm_id_++),
       session_created_cb_(session_created_cb),
       session_message_cb_(session_message_cb),
       session_ready_cb_(session_ready_cb),
       session_closed_cb_(session_closed_cb),
       session_error_cb_(session_error_cb) {
   DCHECK(manager_);
 }
 
 ProxyMediaKeys::~ProxyMediaKeys() {
   manager_->DestroyCdm(cdm_id_);
@@ skipping 68 matching lines @@
 void ProxyMediaKeys::OnSessionClosed(uint32 session_id) {
   session_closed_cb_.Run(session_id);
 }
 
 void ProxyMediaKeys::OnSessionError(uint32 session_id,
                                     media::MediaKeys::KeyError error_code,
                                     uint32 system_code) {
   session_error_cb_.Run(session_id, error_code, system_code);
 }
 
+int ProxyMediaKeys::GetCdmId() const {
+  return cdm_id_;
+}
+
 }  // namespace content