[Sync] Integ tests can't compare progress markers during configuration.

chrome/browser/sync/test/integration/quiesce_status_change_checker.cc

 // 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.
 
 #include "chrome/browser/sync/test/integration/quiesce_status_change_checker.h"
 
 #include <stddef.h>
 
 #include "base/format_macros.h"
 #include "base/scoped_observer.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "components/browser_sync/profile_sync_service.h"
 #include "components/sync/engine/cycle/sync_cycle_snapshot.h"
 
 namespace {
 
 // Returns true if this service is disabled.
 bool IsSyncDisabled(browser_sync::ProfileSyncService* service) {
   return !service->IsSetupInProgress() && !service->IsFirstSetupComplete();
 }
 
 // Returns true if these services have matching progress markers.
 bool ProgressMarkersMatch(const browser_sync::ProfileSyncService* service1,
                           const browser_sync::ProfileSyncService* service2) {
+  // GetActiveDataTypes() is always empty during configuration, so progress
+  // markers cannot be compared.
+  if (!service1->ConfigurationDone() || !service2->ConfigurationDone()) {
+    return false;
+  }
+
   const syncer::ModelTypeSet common_types =
       Intersection(service1->GetActiveDataTypes(),
                    service2->GetActiveDataTypes());
 
   const syncer::SyncCycleSnapshot& snap1 = service1->GetLastCycleSnapshot();
   const syncer::SyncCycleSnapshot& snap2 = service2->GetLastCycleSnapshot();
 
   for (syncer::ModelTypeSet::Iterator type_it = common_types.First();
        type_it.Good(); type_it.Inc()) {
     // Look up the progress markers.  Fail if either one is missing.
@@ skipping 166 matching lines @@
 
 std::string QuiesceStatusChangeChecker::GetDebugMessage() const {
   return base::StringPrintf("Waiting for quiescence of %" PRIuS " clients",
                             services_.size());
 }
 
 void QuiesceStatusChangeChecker::OnServiceStateChanged(
     browser_sync::ProfileSyncService* service) {
   CheckExitCondition();
 }