Remove port lifetime management from renderer

extensions/common/extension_messages.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.
 
 // IPC messages for extensions.
 // Multiply-included message file, hence no include guard.
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 531 matching lines @@
 
 // The browser changed its mind about suspending this extension.
 IPC_MESSAGE_CONTROL1(ExtensionMsg_CancelSuspend,
                      std::string /* extension_id */)
 
 // Response to the renderer for ExtensionHostMsg_GetAppInstallState.
 IPC_MESSAGE_ROUTED2(ExtensionMsg_GetAppInstallStateResponse,
                     std::string /* state */,
                     int32_t /* callback_id */)
 
+// Check whether the Port for extension messaging exists in the frame. If the
+// port ID is unknown, the frame replies with ExtensionHostMsg_CloseMessagePort.
+IPC_MESSAGE_ROUTED1(ExtensionMsg_ValidateMessagePort,
+                    int /* port_id */)
+
 // Dispatch the Port.onConnect event for message channels.
 IPC_MESSAGE_ROUTED5(ExtensionMsg_DispatchOnConnect,
                     int /* target_port_id */,
                     std::string /* channel_name */,
                     ExtensionMsg_TabConnectionInfo /* source */,
                     ExtensionMsg_ExternalConnectionInfo,
                     std::string /* tls_channel_id */)
 
 // Deliver a message sent with ExtensionHostMsg_PostMessage.
-IPC_MESSAGE_ROUTED2(ExtensionMsg_DeliverMessage,
+IPC_MESSAGE_ROUTED3(ExtensionMsg_DeliverMessage,
                     int /* target_port_id */,
+                    int /* source_tab_id */,
                     extensions::Message)
 
 // Dispatch the Port.onDisconnect event for message channels.
 IPC_MESSAGE_ROUTED2(ExtensionMsg_DispatchOnDisconnect,
                     int /* port_id */,
                     std::string /* error_message */)
 
 // Informs the renderer what channel (dev, beta, stable, etc) is running.
 IPC_MESSAGE_CONTROL1(ExtensionMsg_SetChannel,
                      int /* channel */)
@@ skipping 251 matching lines @@
                     int /* acc_obj_id */,
                     base::string16 /* selector */)
 
 // Result of a query selector request.
 // result_acc_obj_id is the accessibility tree ID of the result element; 0
 // indicates no result.
 IPC_MESSAGE_ROUTED3(ExtensionHostMsg_AutomationQuerySelector_Result,
                     int /* request_id */,
                     ExtensionHostMsg_AutomationQuerySelector_Error /* error */,
                     int /* result_acc_obj_id */)