Add a function to convert key system into UUID

media/base/android/media_drm_bridge.cc

 // Copyright (c) 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 "media/base/android/media_drm_bridge.h"
 
 #include "base/logging.h"
 
 using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
 // static
 bool MediaDrmBridge::IsAvailable() {
   return false;
 }
 
+MediaDrmBridge* MediaDrmBridge::Create(int media_keys_id,
+                                       const std::vector<uint8>& uuid) {
+  if (!IsAvailable())
+    return NULL;
+
+  // TODO(qinmin): check whether the uuid is valid.
+  return new MediaDrmBridge(media_keys_id, uuid);
+}
+
 MediaDrmBridge::MediaDrmBridge(
     int media_keys_id, const std::vector<uint8>& uuid)
-    : media_keys_id_(media_keys_id) {}
+    : media_keys_id_(media_keys_id),
+      uuid_(uuid) {
+  // TODO(qinmin): pass the uuid to DRM engine.
+}
 
 MediaDrmBridge::~MediaDrmBridge() {}
 
 bool MediaDrmBridge::GenerateKeyRequest(const std::string& type,
                                         const uint8* init_data,
                                         int init_data_length) {
   NOTIMPLEMENTED();
   return false;
 }
 
@@ skipping 23 matching lines @@
   NOTIMPLEMENTED();
 }
 
 void MediaDrmBridge::OnDrmEvent(
     JNIEnv* env, jobject j_media_drm, jstring session_id, jint event,
     jint extra, jstring data) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace media