Use base::MessageLoop in more files.

content/browser/loader/resource_dispatcher_host_unittest.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.
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop.h"
@@ skipping 1391 matching lines @@
   MakeTestRequest(second_filter.get(), 0, kMaxRequestsPerProcess + 2,
                   net::URLRequestTestJob::test_url_2());
 
   // Issue a request for the third process -- this should fail, because the
   // global limit has been reached.
   MakeTestRequest(third_filter.get(), 0, kMaxRequestsPerProcess + 3,
                   net::URLRequestTestJob::test_url_2());
 
   // Flush all the pending requests.
   while (net::URLRequestTestJob::ProcessOnePendingMessage()) {}
-  MessageLoop::current()->RunUntilIdle();
+  base::MessageLoop::current()->RunUntilIdle();
 
   // Sorts out all the messages we saw by request.
   ResourceIPCAccumulator::ClassifiedMessages msgs;
   accum_.GetClassifiedMessages(&msgs);
 
   // The processes issued the following requests:
   // #1 issued kMaxRequestsPerProcess that passed + 1 that failed
   // #2 issued 1 request that passed
   // #3 issued 1 request that failed
   ASSERT_EQ((kMaxRequestsPerProcess + 1) + 1 + 1, msgs.size());
@@ skipping 515 matching lines @@
     }
 
     base::MessageLoop::current()->RunUntilIdle();
 
     msgs.clear();
     accum_.GetClassifiedMessages(&msgs);
   }
 }
 
 }  // namespace content