Populate canPlayType to renderer

chrome/common/media/encrypted_media_messages_android.h

+// Copyright 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.
+
+// IPC messages for EME on android.
+// Multiply-included message file, hence no include guard.
+
+#include <string>
+#include <vector>
+
+#include "ipc/ipc_message_macros.h"
+
+#define IPC_MESSAGE_START EncryptedMediaMsgStart
+
+IPC_STRUCT_BEGIN(SupportedKeySystem)
+  // Key system UUID.
+  IPC_STRUCT_MEMBER(std::vector<uint8>, uuid)
+
+  // Name of the key system.
+  IPC_STRUCT_MEMBER(std::string, key_system)
+
+  // Name of the parent key system.
+  IPC_STRUCT_MEMBER(std::string, parent_key_system)
+
+  // A list of supported codecs.
+  IPC_STRUCT_MEMBER(std::vector<std::string>, codecs)
+
+  // Whether video composition is enabled.
+  // TODO(qinmin): this may be replaced by a new key_system string.
+  IPC_STRUCT_MEMBER(bool, video_composition_enabled)
+IPC_STRUCT_END()
+
+// Messages sent from the renderer to the browser.
+
+// Synchronously get a list of supported EME key systems.
+IPC_SYNC_MESSAGE_ROUTED0_1(ChromeViewHostMsg_GetSupportedKeySystems,
+                           std::vector<SupportedKeySystem>)