Add CdmService to keep track of CDMs

content/common/media/content_decryption_module_registration.cc

+// Copyright 2016 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/public/common/content_decryption_module_registration.h"
+
+namespace content {
+
+ContentDecryptionModuleRegistration::ContentDecryptionModuleRegistration(
+    const std::string& key_system,
+    const std::string& version,
+    const base::FilePath& module_library_path,
+    const std::vector<base::string16>& supported_codecs,
+    const std::vector<base::string16>& supported_init_data_types)
+    : key_system(key_system),
+      version(version),
+      module_library_path(module_library_path),
+      supported_codecs(supported_codecs),
+      supported_init_data_types(supported_init_data_types) {}
+
+ContentDecryptionModuleRegistration::~ContentDecryptionModuleRegistration() {}
+
+}  // namespace content