sync: Use base::MessageLoop.

sync/engine/syncer_unittest.cc

 // Copyright 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.
 //
 // Syncer unit tests. Unfortunately a lot of these tests
 // are outdated and need to be reworked and updated.
 
 #include <algorithm>
 #include <limits>
 #include <list>
@@ skipping 519 matching lines @@
   }
 
   bool Get(int64 metahandle, syncable::BitField field) {
     return GetField(metahandle, field, false);
   }
 
   Cryptographer* GetCryptographer(syncable::BaseTransaction* trans) {
     return directory()->GetCryptographer(trans);
   }
 
-  MessageLoop message_loop_;
+  base::MessageLoop message_loop_;
 
   // Some ids to aid tests. Only the root one's value is specific. The rest
   // are named for test clarity.
   // TODO(chron): Get rid of these inbuilt IDs. They only make it
   // more confusing.
   syncable::Id root_id_;
   syncable::Id parent_id_;
   syncable::Id child_id_;
 
   TestIdFactory ids_;
@@ skipping 4241 matching lines @@
     EXPECT_EQ("xyz", final_monitor_records["xyz"].extension_id);
     EXPECT_EQ(2049U, final_monitor_records["ABC"].bookmark_write_count);
     EXPECT_EQ(4U,    final_monitor_records["xyz"].bookmark_write_count);
   } else {
     EXPECT_TRUE(final_monitor_records.empty())
         << "Should not restore records after successful bookmark commit.";
   }
 }
 
 }  // namespace syncer