Separate RendererCdmManager from RendererMediaPlayerManager.

content/renderer/media/crypto/renderer_cdm_manager.h

+// 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.
+
+#ifndef CONTENT_RENDERER_MEDIA_CRYPTO_RENDERER_CDM_MANAGER_H_
+#define CONTENT_RENDERER_MEDIA_CRYPTO_RENDERER_CDM_MANAGER_H_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "content/common/media/cdm_messages_enums.h"
+#include "content/public/renderer/render_frame_observer.h"
+#include "media/base/media_keys.h"
+#include "url/gurl.h"
+
+namespace blink {
+class WebFrame;
+}
+
+namespace content {
+
+class ProxyMediaKeys;
+
+// Class for managing all the CDM objects in the same RenderFrame.
+class RendererCdmManager : public RenderFrameObserver {
+ public:
+  static const int kInvalidCdmId = 0;
+
+  // Constructs a RendererCdmManager object for the |render_frame|.
+  explicit RendererCdmManager(RenderFrame* render_frame);
+  virtual ~RendererCdmManager();
+
+  // RenderFrameObserver overrides.
+  virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
+
+  // Encrypted media related methods.
+  void InitializeCdm(int cdm_id,
+                     ProxyMediaKeys* media_keys,
+                     const std::string& key_system,
+                     const GURL& security_origin);
+  void CreateSession(int cdm_id,
+                     uint32 session_id,
+                     CdmHostMsg_CreateSession_ContentType conent_type,
+                     const std::vector<uint8>& init_data);
+  void UpdateSession(int cdm_id,
+                     uint32 session_id,
+                     const std::vector<uint8>& response);
+  void ReleaseSession(int cdm_id, uint32 session_id);
+  void DestroyCdm(int cdm_id);
+
+ private:
+  // Registers a ProxyMediaKeys object.
+  void RegisterMediaKeys(int cdm_id, ProxyMediaKeys* media_keys);
+
+  // Gets the pointer to ProxyMediaKeys given the |cdm_id|.
+  ProxyMediaKeys* GetMediaKeys(int cdm_id);
+
+  // Message handlers.
+  void OnSessionCreated(int cdm_id,
+                        uint32 session_id,
+                        const std::string& web_session_id);
+  void OnSessionMessage(int cdm_id,
+                        uint32 session_id,
+                        const std::vector<uint8>& message,
+                        const GURL& destination_url);
+  void OnSessionReady(int cdm_id, uint32 session_id);
+  void OnSessionClosed(int cdm_id, uint32 session_id);
+  void OnSessionError(int cdm_id,
+                      uint32 session_id,
+                      media::MediaKeys::KeyError error_code,
+                      uint32 system_code);
+
+  // CDM ID to ProxyMediaKeys mapping.
+  std::map<int, ProxyMediaKeys*> proxy_media_keys_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(RendererCdmManager);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_CRYPTO_RENDERER_CDM_MANAGER_H_