Plumbing devtools agent host id and request id between processes

content/common/navigation_params.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.
 
 #ifndef CONTENT_COMMON_NAVIGATION_PARAMS_H_
 #define CONTENT_COMMON_NAVIGATION_PARAMS_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 298 matching lines @@
 
   // Opaque history state (received by ViewHostMsg_UpdateState).
   PageState page_state;
 
   // For browser-initiated navigations, this is the unique id of the
   // NavigationEntry being navigated to. (For renderer-initiated navigations it
   // is 0.) If the load succeeds, then this nav_entry_id will be reflected in
   // the resulting FrameHostMsg_DidCommitProvisionalLoad message.
   int nav_entry_id;
 
+  // For browser-initiated navigations, this is the DevTools Network.requestId
+  // which will always an odd number to let us distinguish browser generated IDs
+  // from blink generated IDs (which will be even). For renderer-initiated
+  // navigations this will be zero.
+  int devtools_request_id;
+
   // Whether this is a history navigation in a newly created child frame, in
   // which case the browser process is instructing the renderer process to load
   // a URL from a session history item.  Defaults to false.
   bool is_history_navigation_in_new_child;
 
   // If this is a history navigation, this contains a map of frame unique names
   // to |is_about_blank| for immediate children of the frame being navigated for
   // which there are history items.  The renderer process only needs to check
   // with the browser process for newly created subframes that have these unique
   // names (and only when not staying on about:blank).
@@ skipping 73 matching lines @@
   ~NavigationParams();
 
   CommonNavigationParams common_params;
   StartNavigationParams start_params;
   RequestNavigationParams request_params;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_NAVIGATION_PARAMS_H_