X-Chrome-Connected is stripped when it should not be in headers.

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc

 // 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.
 
 #include "chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h"
 
 #include <stdint.h>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 456 matching lines @@
     variations::AppendVariationHeaders(
         request->url(), is_off_the_record,
         !is_off_the_record && io_data->GetMetricsEnabledStateOnIOThread(),
         &headers);
     request->SetExtraRequestHeaders(headers);
   }
 
   if (io_data->policy_header_helper())
     io_data->policy_header_helper()->AddPolicyHeaders(request->url(), request);
 
-  signin::AppendMirrorRequestHeaderHelper(request, GURL() /* redirect_url */,
-                                          io_data, info->GetChildID(),
-                                          info->GetRouteID());
+  signin::FixMirrorRequestHeaderHelper(request, GURL() /* redirect_url */,
+                                       io_data, info->GetChildID(),
+                                       info->GetRouteID());
 
   AppendStandardResourceThrottles(request,
                                   resource_context,
                                   resource_type,
                                   throttles);
 #if !defined(DISABLE_NACL)
   if (!is_prerendering) {
     AppendComponentUpdaterThrottles(request,
                                     resource_context,
                                     resource_type,
@@ skipping 303 matching lines @@
 
 void ChromeResourceDispatcherHostDelegate::OnRequestRedirected(
     const GURL& redirect_url,
     net::URLRequest* request,
     content::ResourceContext* resource_context,
     content::ResourceResponse* response) {
   ProfileIOData* io_data = ProfileIOData::FromResourceContext(resource_context);
 
   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
 
   // In the Mirror world, Chrome should append a X-Chrome-Connected header to

[eroman, 2016/08/23 20:02:36]

What is the Mirror world? Is this a public project name?

[Ramin Halavati, 2016/08/26 17:04:31]

Added a comment.

   // all Gaia requests from a connected profile so Gaia could return a 204
   // response and let Chrome handle the action with native UI. The only
   // exception is requests from gaia webview, since the native profile
   // management UI is built on top of it.
-  signin::AppendMirrorRequestHeaderHelper(
+  signin::FixMirrorRequestHeaderHelper(
       request, redirect_url, io_data, info->GetChildID(), info->GetRouteID());
 
   if (io_data->resource_prefetch_predictor_observer()) {
     io_data->resource_prefetch_predictor_observer()->OnRequestRedirected(
         redirect_url, request);
   }
 
   if (io_data->policy_header_helper())
     io_data->policy_header_helper()->AddPolicyHeaders(redirect_url, request);
 }
@@ skipping 71 matching lines @@
           base::Bind(&ChromeResourceDispatcherHostDelegate::OnAbortedFrameLoad,
                     base::Unretained(this), url, request_loading_time));
       return;
   }
 
   std::string metric_name = (request_loading_time.InMilliseconds() < 100 ?
       "Net.ErrAborted.Fast" : "Net.ErrAborted.Slow");
   rappor::SampleDomainAndRegistryFromGURL(
       g_browser_process->rappor_service(), metric_name, url);
 }