PlzNavigate: inform the renderer that a navigation is a POST

content/common/frame_messages.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 interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 309 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(transition)
   IPC_STRUCT_TRAITS_MEMBER(navigation_type)
   IPC_STRUCT_TRAITS_MEMBER(allow_download)
   IPC_STRUCT_TRAITS_MEMBER(should_replace_current_entry)
   IPC_STRUCT_TRAITS_MEMBER(ui_timestamp)
   IPC_STRUCT_TRAITS_MEMBER(report_type)
   IPC_STRUCT_TRAITS_MEMBER(base_url_for_data_url)
   IPC_STRUCT_TRAITS_MEMBER(history_url_for_data_url)
   IPC_STRUCT_TRAITS_MEMBER(lofi_state)
   IPC_STRUCT_TRAITS_MEMBER(navigation_start)
+  IPC_STRUCT_TRAITS_MEMBER(is_post)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::BeginNavigationParams)
-  IPC_STRUCT_TRAITS_MEMBER(method)
   IPC_STRUCT_TRAITS_MEMBER(headers)
   IPC_STRUCT_TRAITS_MEMBER(load_flags)
   IPC_STRUCT_TRAITS_MEMBER(has_user_gesture)
   IPC_STRUCT_TRAITS_MEMBER(skip_service_worker)
   IPC_STRUCT_TRAITS_MEMBER(request_context_type)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::StartNavigationParams)
-  IPC_STRUCT_TRAITS_MEMBER(is_post)
   IPC_STRUCT_TRAITS_MEMBER(extra_headers)
   IPC_STRUCT_TRAITS_MEMBER(browser_initiated_post_data)
 #if defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(has_user_gesture)
 #endif
   IPC_STRUCT_TRAITS_MEMBER(transferred_request_child_id)
   IPC_STRUCT_TRAITS_MEMBER(transferred_request_request_id)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::RequestNavigationParams)
@@ skipping 1076 matching lines @@
 IPC_MESSAGE_ROUTED3(FrameHostMsg_FindMatchRects_Reply,
                     int /* version */,
                     std::vector<gfx::RectF> /* rects */,
                     gfx::RectF /* active_rect */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent FrameMsg, then ifdefs for platform specific FrameMsg, then
 // platform independent FrameHostMsg, then ifdefs for platform specific
 // FrameHostMsg.