Add PPAPI decryptor interfaces.

ppapi/proxy/ppp_content_decryptor_proxy.h

+// Copyright (c) 2012 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 PPAPI_PROXY_PPP_CONTENT_DECRYPTOR_PROXY_H_
+#define PPAPI_PROXY_PPP_CONTENT_DECRYPTOR_PROXY_H_
+
+#include "ppapi/c/dev/ppp_content_decryptor_dev.h"
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/proxy/interface_proxy.h"
+#include "ppapi/shared_impl/host_resource.h"
+
+namespace ppapi {
+namespace proxy {
+
+class SerializedVarReceiveInput;
+
+class PPP_ContentDecryptor_Proxy : public InterfaceProxy {
+ public:
+  PPP_ContentDecryptor_Proxy(Dispatcher* dispatcher);
+  virtual ~PPP_ContentDecryptor_Proxy();
+
+  static const Info* GetInfo();
+
+  // InterfaceProxy implementation.
+  virtual bool OnMessageReceived(const IPC::Message& msg);
+
+ private:
+  // Message handlers.
+  // TODO(tomfinegan): Not sure if I want to use OnPluginMsg or OnMsg.

[dmichael (off chromium), 2012/08/08 22:24:02]

OnMsg is fine in this case, since they're *all* host->plugin messages. If you
end up moving these in to a place that also has host->plugin messages, you
should use OnPluginMsg to make them distinct. (That might happen when you move
to passing the PPP struct to some InitializeCDM-like method on
PPB_ContentDecryptor, as we've discussed).

[Tom Finegan, 2012/08/09 22:45:17]

Done.

+  void OnPluginMsgGenerateKeyRequest(PP_Instance instance,
+                                     SerializedVarReceiveInput key_system,
+                                     SerializedVarReceiveInput init_data);
+  void OnPluginMsgAddKey(PP_Instance instance,
+                         SerializedVarReceiveInput session_id,
+                         SerializedVarReceiveInput key);
+  void OnPluginMsgCancelKeyRequest(PP_Instance instance,
+                                   SerializedVarReceiveInput session_id);
+  void OnPluginMsgDecrypt(PP_Instance instance,
+                          const HostResource& encrypted_block,
+                          uint64_t request_id);
+  void OnPluginMsgDecryptAndDecode(PP_Instance instance,
+                                   const HostResource& encrypted_block,
+                                   uint64_t request_id);
+
+  const PPP_ContentDecryptor_Dev* ppp_decryptor_impl_;
+
+  DISALLOW_COPY_AND_ASSIGN(PPP_ContentDecryptor_Proxy);
+};
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_PPP_CONTENT_DECRYPTOR_PROXY_H_