Remove calls to deprecated MessageLoop methods in base.

base/files/file_path_watcher_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 "base/files/file_path_watcher.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <aclapi.h>
 #elif defined(OS_POSIX)
@@ skipping 178 matching lines @@
     return write_size == static_cast<int>(content.length());
   }
 
   bool SetupWatch(const FilePath& target,
                   FilePathWatcher* watcher,
                   TestDelegateBase* delegate,
                   bool recursive_watch) WARN_UNUSED_RESULT;
 
   bool WaitForEvents() WARN_UNUSED_RESULT {
     collector_->Reset();
-    loop_.Run();
+    RunLoop().Run();
     return collector_->Success();
   }
 
   NotificationCollector* collector() { return collector_.get(); }
 
   MessageLoop loop_;
   base::Thread file_thread_;
   ScopedTempDir temp_dir_;
   scoped_refptr<NotificationCollector> collector_;
 
@@ skipping 673 matching lines @@
   ASSERT_TRUE(base::CreateDirectory(test_dir2));
   ASSERT_TRUE(WriteFile(test_file, "content"));
 
   FilePathWatcher watcher;
   std::unique_ptr<TestDelegate> delegate(new TestDelegate(collector()));
   ASSERT_TRUE(SetupWatch(test_file, &watcher, delegate.get(), false));
 
   // We should not get notified in this case as it hasn't affected our ability
   // to access the file.
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Read, false));
-  loop_.PostDelayedTask(FROM_HERE,
-                        MessageLoop::QuitWhenIdleClosure(),
-                        TestTimeouts::tiny_timeout());
+  loop_.task_runner()->PostDelayedTask(FROM_HERE,
+                                       MessageLoop::QuitWhenIdleClosure(),
+                                       TestTimeouts::tiny_timeout());
   ASSERT_FALSE(WaitForEvents());
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Read, true));
 
   // We should get notified in this case because filepathwatcher can no
   // longer access the file
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Execute, false));
   ASSERT_TRUE(WaitForEvents());
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Execute, true));
   DeleteDelegateOnFileThread(delegate.release());
 }
 
 #endif  // OS_MACOSX
 }  // namespace
 
 }  // namespace base