[chrome/browser/chromeos/drive] Avoid use of MessageLoopProxy by use of TTRH

chrome/browser/chromeos/drive/file_system_util.cc

Index: chrome/browser/chromeos/drive/file_system_util.cc
diff --git a/chrome/browser/chromeos/drive/file_system_util.cc b/chrome/browser/chromeos/drive/file_system_util.cc
index 6a351ff6b1fb4f0b87866ef3dcb2478c1b40612f..f0e905e540aad044826b8e781a1562b8fef6addb 100644
--- a/chrome/browser/chromeos/drive/file_system_util.cc
+++ b/chrome/browser/chromeos/drive/file_system_util.cc
@@ -16,11 +16,11 @@
 #include "base/json/json_file_value_serializer.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
@@ -298,7 +298,7 @@ void EnsureDirectoryExists(Profile* profile,
         true /* is_recursive */,
         callback);
   } else {
-    base::MessageLoopProxy::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(callback, FILE_ERROR_OK));
   }
 }