Moved JsonPrefStore to use SequencedWorkerPool

chrome/test/reliability/page_load_test.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.
 //
 // This file provides reliablity test which runs under UI test framework. The
 // test is intended to run within QEMU environment.
 //
 // Usage 1: reliability_test
 // Upon invocation, it visits a hard coded list of sample URLs. This is mainly
 // used by buildbot, to verify reliability_test itself runs ok.
@@ skipping 721 matching lines @@
     }
     if (metrics)
       metrics->crash_dump_count = num_dumps;
   }
 
   // Get a PrefService whose contents correspond to the Local State file
   // that was saved by the app as it closed.  The caller takes ownership of the
   // returned PrefService object.
   PrefService* GetLocalState() {
     FilePath path = user_data_dir().Append(chrome::kLocalStateFilename);
-    return PrefServiceMockBuilder().WithUserFilePrefs(path).Create();
+    return PrefServiceMockBuilder().WithUserFilePrefs(
+        path, MessageLoop::current()->message_loop_proxy()).Create();
   }
 
   void GetStabilityMetrics(NavigationMetrics* metrics) {
     if (!metrics)
       return;
     scoped_ptr<PrefService> local_state(GetLocalState());
     if (!local_state.get())
       return;
     local_state->RegisterBooleanPref(prefs::kStabilityExitedCleanly, false);
     local_state->RegisterIntegerPref(prefs::kStabilityLaunchCount, -1);
@@ skipping 59 matching lines @@
   if (!g_end_url.empty()) {
     NavigateToURLLogResult(
         g_end_url, log_file, NULL, g_continuous_load, false);
   }
 
   log_file.close();
 }
 
 }  // namespace