Add CdmService to keep track of CDMs

content/public/browser/cdm_service.h

+// 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.
+
+#ifndef CONTENT_PUBLIC_BROWSER_CDM_SERVICE_H_
+#define CONTENT_PUBLIC_BROWSER_CDM_SERVICE_H_
+
+#include <vector>
+
+#include "content/common/content_export.h"
+#include "content/public/common/cdm_info.h"
+
+namespace content {
+
+class CONTENT_EXPORT CdmService {
+ public:
+  // Returns the CdmService singleton.
+  static CdmService* GetInstance();
+
+  virtual ~CdmService() {}
+
+  // Must be called on the instance to finish initialization.
+  virtual void Init() = 0;
+
+  // Registers a CDM with the specified CDM information. The CDM will be
+  // insertted at the head of the list so that it can override any older

[xhwang, 2016/04/13 00:22:13]

inserted

[jrummell, 2016/04/14 01:32:16]

Done.

+  // registrations.

[xhwang, 2016/04/13 00:22:13]

Please add a note to potential issues described in
https://bugs.chromium.org/p/chromium/issues/detail?id=599588

Thanks!

[jrummell, 2016/04/14 01:32:16]

Done (although I think this is more an issue for the service providing data to
RMKSA than this registration).

+  virtual void RegisterCdm(const CdmInfo& info) = 0;
+
+  // Returns the list of all registered CDMs and the associated data.
+  virtual const std::vector<CdmInfo>& GetAllRegisteredCdms() = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_CDM_SERVICE_H_