PlzNavigate: implement RequestNavigation in the no live renderer case

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 "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/frame_message_enums.h"
@@ skipping 253 matching lines @@
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(FrameHostMsg_OpenURL_Params)
   IPC_STRUCT_MEMBER(GURL, url)
   IPC_STRUCT_MEMBER(content::Referrer, referrer)
   IPC_STRUCT_MEMBER(WindowOpenDisposition, disposition)
   IPC_STRUCT_MEMBER(bool, should_replace_current_entry)
   IPC_STRUCT_MEMBER(bool, user_gesture)
 IPC_STRUCT_END()
 
+// PlzNavigate
 IPC_STRUCT_BEGIN(FrameHostMsg_BeginNavigation_Params)
   // The request method: GET, POST, etc.
   IPC_STRUCT_MEMBER(std::string, method)
 
   // The requested URL.
   IPC_STRUCT_MEMBER(GURL, url)
 
   // The referrer to use (may be empty).
-  IPC_STRUCT_MEMBER(GURL, referrer)
-
-  // The referrer policy to use.
-  IPC_STRUCT_MEMBER(blink::WebReferrerPolicy, referrer_policy)
+  IPC_STRUCT_MEMBER(content::Referrer, referrer)
 
   // Additional HTTP request headers.
   IPC_STRUCT_MEMBER(std::string, headers)
 
   // net::URLRequest load flags (net::LOAD_NORMAL | net::LOAD_ENABLE_LOAD_TIMING
   // by default).
   IPC_STRUCT_MEMBER(int, load_flags)
 
   // Optional resource request body (may be null).
   IPC_STRUCT_MEMBER(scoped_refptr<content::ResourceRequestBody>,
@@ skipping 412 matching lines @@
                      std::string  /* selector */,
                      std::string  /* markup */)
 
 // Tells the browser to perform a navigation.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_BeginNavigation,
                     FrameHostMsg_BeginNavigation_Params)
 
 // Sent once a paint happens after the first non empty layout. In other words
 // after the frame has painted something.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DidFirstVisuallyNonEmptyPaint)