Delete TODO-comment about guest process/frame IDs in MessageService::OpenChannelImpl

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 199 matching lines @@
   // The ID of the extension that initiated the request. May be empty if it
   // wasn't initiated by an extension.
   IPC_STRUCT_MEMBER(std::string, source_id)
 
   // The URL of the frame that initiated the request.
   IPC_STRUCT_MEMBER(GURL, source_url)
 
   // The process ID of the webview that initiated the request.
   IPC_STRUCT_MEMBER(int, guest_process_id)
 
-  // The render frame routing ID of the webview that initiated the request.
-  IPC_STRUCT_MEMBER(int, guest_render_frame_routing_id)
+  // The render frame ID of the frame/webview that initiated the request.
+  IPC_STRUCT_MEMBER(int, source_render_frame_routing_id)
+
+  // True if the request was initiated by a frame in the same process as the
+  // recipient.
+  IPC_STRUCT_MEMBER(bool, source_is_in_same_process)
 IPC_STRUCT_END()
 
 IPC_STRUCT_TRAITS_BEGIN(extensions::DraggableRegion)
   IPC_STRUCT_TRAITS_MEMBER(draggable)
   IPC_STRUCT_TRAITS_MEMBER(bounds)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::SocketPermissionRequest)
   IPC_STRUCT_TRAITS_MEMBER(type)
   IPC_STRUCT_TRAITS_MEMBER(host)
@@ skipping 694 matching lines @@
                      int64_t /* service_worker_version_id */,
                      std::string /* request_uuid */)
 
 // Asks the browser to decrement the pending activity count for
 // the worker with version id |service_worker_version_id|.
 // |request_uuid| must match the GUID of a previous request, otherwise the
 // browser process ignores the IPC.
 IPC_MESSAGE_CONTROL2(ExtensionHostMsg_DecrementServiceWorkerActivity,
                      int64_t /* service_worker_version_id */,
                      std::string /* request_uuid */)