Step two of optionally sending messages to/from message ports as base::Value.

content/common/view_messages.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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/cookie_data.h"
 #include "content/common/date_time_suggestion.h"
 #include "content/common/frame_replication_state.h"
 #include "content/common/navigation_gesture.h"
 #include "content/common/view_message_enums.h"
 #include "content/common/webplugin_geometry.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/favicon_url.h"
 #include "content/public/common/file_chooser_file_info.h"
 #include "content/public/common/file_chooser_params.h"
 #include "content/public/common/menu_item.h"
+#include "content/public/common/message_port_types.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/page_zoom.h"
 #include "content/public/common/referrer.h"
 #include "content/public/common/renderer_preferences.h"
 #include "content/public/common/stop_find_action.h"
 #include "content/public/common/three_d_api_types.h"
 #include "content/public/common/window_container_type.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
@@ skipping 491 matching lines @@
   // equivalent (swapped out) frame in the destination process.
   IPC_STRUCT_MEMBER(int, source_routing_id)
 
   // The origin of the source frame.
   IPC_STRUCT_MEMBER(base::string16, source_origin)
 
   // The origin for the message's target.
   IPC_STRUCT_MEMBER(base::string16, target_origin)
 
   // Information about the MessagePorts this message contains.
-  IPC_STRUCT_MEMBER(std::vector<int>, message_port_ids)
+  IPC_STRUCT_MEMBER(std::vector<content::TransferredMessagePort>, message_ports)
   IPC_STRUCT_MEMBER(std::vector<int>, new_routing_ids)
 IPC_STRUCT_END()
 
 // Messages sent from the browser to the renderer.
 
 #if defined(OS_ANDROID)
 // Tells the renderer to cancel an opened date/time dialog.
 IPC_MESSAGE_ROUTED0(ViewMsg_CancelDateTimeDialog)
 
 // Replaces a date time input field.
@@ skipping 1100 matching lines @@
 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
 // for details.
 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_PreCacheFontCharacters,
                             LOGFONT /* font_data */,
                             base::string16 /* characters */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.