Avoid useless SYNC_CYCLE_CONTINUATION sync cycle

chrome/browser/sync/glue/browser_thread_model_worker_unittest.cc

 // Copyright (c) 2011 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 "base/bind.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread.h"
 #include "base/timer.h"
 #include "chrome/browser/sync/glue/browser_thread_model_worker.h"
-#include "chrome/browser/sync/util/unrecoverable_error_info.h"
 #include "content/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::OneShotTimer;
 using base::Thread;
 using base::TimeDelta;
 using content::BrowserThread;
 
 namespace browser_sync {
 
@@ skipping 22 matching lines @@
                                base::Unretained(this));
     timer()->Start(
         FROM_HERE,
         TimeDelta::FromMilliseconds(TestTimeouts::action_timeout_ms()),
         this,
         &BrowserThreadModelWorkerTest::Timeout);
     worker()->DoWorkAndWaitUntilDone(c);
   }
 
   // This is the work that will be scheduled to be done on the DB thread.
-  UnrecoverableErrorInfo DoWork() {
+  SyncerError DoWork() {
     EXPECT_TRUE(BrowserThread::CurrentlyOn(BrowserThread::DB));
     timer_.Stop();  // Stop the failure timer so the test succeeds.
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE, MessageLoop::QuitClosure());
     did_do_work_ = true;
-    return UnrecoverableErrorInfo();
+    return NO_ERROR;
   }
 
   // This will be called by the OneShotTimer and make the test fail unless
   // DoWork is called first.
   void Timeout() {
     ADD_FAILURE() << "Timed out waiting for work to be done on the DB thread.";
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE, MessageLoop::QuitClosure());
   }
 
@@ skipping 24 matching lines @@
   MessageLoop::current()->PostTask(FROM_HERE,
       base::Bind(&BrowserThreadModelWorkerTest::ScheduleWork,
                  factory()->GetWeakPtr()));
   MessageLoop::current()->Run();
   EXPECT_TRUE(did_do_work());
 }
 
 }  // namespace
 
 }  // namespace browser_sync