Classify navigations without page id in parallel to the existing classifier.

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 104 matching lines @@
   IPC_STRUCT_MEMBER(base::string16, error_description)
   // The URL that the error is reported for.
   IPC_STRUCT_MEMBER(GURL, url)
   // True if the failure is the result of navigating to a POST again
   // and we're going to show the POST interstitial.
   IPC_STRUCT_MEMBER(bool, showing_repost_interstitial)
 IPC_STRUCT_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::FrameNavigateParams)
   IPC_STRUCT_TRAITS_MEMBER(page_id)
+  IPC_STRUCT_TRAITS_MEMBER(nav_entry_id)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(base_url)
   IPC_STRUCT_TRAITS_MEMBER(referrer)
   IPC_STRUCT_TRAITS_MEMBER(transition)
   IPC_STRUCT_TRAITS_MEMBER(redirects)
   IPC_STRUCT_TRAITS_MEMBER(should_update_history)
   IPC_STRUCT_TRAITS_MEMBER(searchable_form_url)
   IPC_STRUCT_TRAITS_MEMBER(searchable_form_encoding)
   IPC_STRUCT_TRAITS_MEMBER(contents_mime_type)
   IPC_STRUCT_TRAITS_MEMBER(socket_address)
 IPC_STRUCT_TRAITS_END()
 
 // Parameters structure for FrameHostMsg_DidCommitProvisionalLoad, which has
 // too many data parameters to be reasonably put in a predefined IPC message.
 IPC_STRUCT_BEGIN_WITH_PARENT(FrameHostMsg_DidCommitProvisionalLoad_Params,
                              content::FrameNavigateParams)
   IPC_STRUCT_TRAITS_PARENT(content::FrameNavigateParams)
 
+  // Whether this commit created a new entry. TODO(avi): Does this need to go in
+  // FrameNavigateParams, instead?
+  IPC_STRUCT_MEMBER(bool, did_create_new_entry)
+
   // Information regarding the security of the connection (empty if the
   // connection was not secure).
   IPC_STRUCT_MEMBER(std::string, security_info)
 
   // The gesture that initiated this navigation.
   IPC_STRUCT_MEMBER(content::NavigationGesture, gesture)
 
   // True if this was a post request.
   IPC_STRUCT_MEMBER(bool, is_post)
 
@@ skipping 75 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(browser_navigation_start)
   IPC_STRUCT_TRAITS_MEMBER(redirects)
   IPC_STRUCT_TRAITS_MEMBER(can_load_local_resources)
   IPC_STRUCT_TRAITS_MEMBER(frame_to_navigate)
   IPC_STRUCT_TRAITS_MEMBER(request_time)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::HistoryNavigationParams)
   IPC_STRUCT_TRAITS_MEMBER(page_state)
   IPC_STRUCT_TRAITS_MEMBER(page_id)
+  IPC_STRUCT_TRAITS_MEMBER(nav_entry_id)
   IPC_STRUCT_TRAITS_MEMBER(pending_history_list_offset)
   IPC_STRUCT_TRAITS_MEMBER(current_history_list_offset)
   IPC_STRUCT_TRAITS_MEMBER(current_history_list_length)
   IPC_STRUCT_TRAITS_MEMBER(should_clear_history_list)
 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)
@@ skipping 590 matching lines @@
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DispatchLoad)
 
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif