Expose local sync mode status in the chrome://sync-internals page.

components/sync/engine_impl/sync_manager_impl.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 "components/sync/engine_impl/sync_manager_impl.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 259 matching lines @@
 
   // Now that we have opened the Directory we can restore any previously saved
   // nigori specifics.
   if (args->saved_nigori_state) {
     sync_encryption_handler_->RestoreNigori(*args->saved_nigori_state);
     args->saved_nigori_state.reset();
   }
 
   if (args->enable_local_sync_backend) {
     VLOG(1) << "Running against local sync backend.";
+    allstatus_.SetLocalBackendFolder(
+        args->local_sync_backend_folder.AsUTF8Unsafe());
     connection_manager_ = base::MakeUnique<LoopbackConnectionManager>(
         args->cancelation_signal, args->local_sync_backend_folder);
   } else {
     connection_manager_ = base::MakeUnique<SyncServerConnectionManager>(
         args->service_url.host() + args->service_url.path(),
         args->service_url.EffectiveIntPort(),
         args->service_url.SchemeIsCryptographic(), args->post_factory.release(),
         args->cancelation_signal);
   }
   connection_manager_->set_client_id(directory()->cache_guid());
@@ skipping 715 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   cycle_context_->set_cookie_jar_mismatch(account_mismatch);
   cycle_context_->set_cookie_jar_empty(empty_jar);
 }
 
 void SyncManagerImpl::OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd) {
   directory()->OnMemoryDump(pmd);
 }
 
 }  // namespace syncer