remove empty render_widget_host_browsertest

content/browser/renderer_host/render_widget_host_browsertest.cc

-// Copyright (c) 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/path_service.h"
-#include "base/run_loop.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/common/content_paths.h"
-#include "content/public/test/content_browser_test.h"
-#include "content/public/test/content_browser_test_utils.h"
-#include "content/shell/browser/shell.h"
-#include "net/base/filename_util.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-namespace content {
-
-class RenderWidgetHostBrowserTest : public ContentBrowserTest {
- public:
-  RenderWidgetHostBrowserTest() {}
-
-  void SetUpOnMainThread() override {
-    ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &test_dir_));
-  }
-
- protected:
-  base::FilePath test_dir_;
-};
-
-}  // namespace content