chrome: Use base::MessageLoop. (Part 3)

chrome/browser/sync_file_system/fake_drive_file_sync_client_unittest.cc

Index: chrome/browser/sync_file_system/fake_drive_file_sync_client_unittest.cc
diff --git a/chrome/browser/sync_file_system/fake_drive_file_sync_client_unittest.cc b/chrome/browser/sync_file_system/fake_drive_file_sync_client_unittest.cc
index 1e6b95a5c03f7cee00de58fee22ff0f8f5530dd4..9fce62b4b80e66f008f3e7fae1b2f21add68cf38 100644
--- a/chrome/browser/sync_file_system/fake_drive_file_sync_client_unittest.cc
+++ b/chrome/browser/sync_file_system/fake_drive_file_sync_client_unittest.cc
@@ -42,7 +42,7 @@ void DidDeleteFile(google_apis::GDataErrorCode* error_out,
 }  // namespace
 
 TEST(FakeDriveFileSyncClientTest, ChangeSquashTest) {
-  MessageLoop message_loop;
+  base::MessageLoop message_loop;
   FakeDriveFileSyncClient sync_client;
   std::string kParentResourceId("parent resource id");
   std::string kParentTitle("app-id");
@@ -98,7 +98,7 @@ TEST(FakeDriveFileSyncClientTest, ChangeSquashTest) {
 }
 
 TEST(FakeDriveFileSyncClientTest, DeleteFile) {
-  MessageLoop message_loop;
+  base::MessageLoop message_loop;
   FakeDriveFileSyncClient sync_client;
   std::string resource_id = "resource_id_to_be_deleted";
   sync_client.PushRemoteChange(