Revert of base: Remove use of MessageLoopProxy

base/sequence_checker_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 "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
 #include "base/sequence_checker.h"
-#include "base/single_thread_task_runner.h"
 #include "base/test/sequenced_worker_pool_owner.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // Duplicated from base/sequence_checker.h so that we can be good citizens
 // there and undef the macro.
 #if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON))
 #define ENABLE_SEQUENCE_CHECKER 1
 #else
 #define ENABLE_SEQUENCE_CHECKER 0
@@ skipping 53 matching lines @@
                                const std::string& token_name) {
     pool()->PostNamedSequencedWorkerTask(
         token_name,
         FROM_HERE,
         base::Bind(&SequenceCheckedObject::DoStuff,
                    base::Unretained(sequence_checked_object)));
   }
 
   void PostDoStuffToOtherThread(
       SequenceCheckedObject* sequence_checked_object) {
-    other_thread()->task_runner()->PostTask(
-        FROM_HERE, base::Bind(&SequenceCheckedObject::DoStuff,
-                              base::Unretained(sequence_checked_object)));
+    other_thread()->message_loop()->PostTask(
+        FROM_HERE,
+        base::Bind(&SequenceCheckedObject::DoStuff,
+                   base::Unretained(sequence_checked_object)));
   }
 
   void PostDeleteToOtherThread(
       scoped_ptr<SequenceCheckedObject> sequence_checked_object) {
     other_thread()->message_loop()->DeleteSoon(
         FROM_HERE,
         sequence_checked_object.release());
   }
 
   // Destroys the SequencedWorkerPool instance, blocking until it is fully shut
@@ skipping 224 matching lines @@
 #endif  // ENABLE_SEQUENCE_CHECKER
 
 #endif  // GTEST_HAS_DEATH_TEST || !ENABLE_SEQUENCE_CHECKER
 
 }  // namespace
 
 }  // namespace base
 
 // Just in case we ever get lumped together with other compilation units.
 #undef ENABLE_SEQUENCE_CHECKER