Add initial Controller to DownloadService

components/download/internal/download_service_impl_unittest.cc

+// Copyright 2017 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 "components/download/internal/download_service_impl.h"
+
+#include "base/macros.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace download {
+namespace {
+
+class DownloadServiceImplTest : public testing::Test {
+ public:
+  DownloadServiceImplTest() {}
+  ~DownloadServiceImplTest() override = default;
+
+  void SetUp() override {}
+
+ protected:
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DownloadServiceImplTest);
+};
+
+}  // namespace
+
+TEST_F(DownloadServiceImplTest, Dummy) {}
+
+}  // namespace download