Don't use base::MessageLoop::{Quit,QuitClosure} in chrome/

chrome/browser/sync_file_system/local/syncable_file_operation_runner_unittest.cc

 // Copyright 2013 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 <string>
 
 #include "base/basictypes.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
 #include "base/location.h"
@@ skipping 114 matching lines @@
     write_bytes_ += bytes;
     write_complete_ = complete;
     ++callback_count_;
   }
 
   void DidFinish(const tracked_objects::Location& location,
                  File::Error expect, File::Error status) {
     SCOPED_TRACE(testing::Message() << location.ToString());
     EXPECT_EQ(expect, status);
     ++callback_count_;
-    base::MessageLoop::current()->Quit();
+    base::MessageLoop::current()->QuitWhenIdle();
   }
 
   bool CreateTempFile(base::FilePath* path) {
     return base::CreateTemporaryFileInDir(dir_.path(), path);
   }
 
   content::TestBrowserThreadBundle thread_bundle_;
 
   base::ScopedTempDir dir_;
   scoped_ptr<leveldb::Env> in_memory_env_;
@@ skipping 256 matching lines @@
   storage::FileSystemOperationRunner::OperationID id =
       file_system_.operation_runner()->Truncate(
           URL(kFile), 10, ExpectStatus(FROM_HERE, File::FILE_OK));
   file_system_.operation_runner()->Cancel(
       id, ExpectStatus(FROM_HERE, File::FILE_ERROR_INVALID_OPERATION));
   base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
 }
 
 }  // namespace sync_file_system