Refactor ViewsDelegate and MD-ify the icon-to-text spacing for checkbox and radiobutton

chrome/test/base/chrome_render_view_host_test_harness.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 "chrome/test/base/chrome_render_view_host_test_harness.h"
 
 #include <utility>
 
+#include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/signin/account_tracker_service_factory.h"
 #include "chrome/browser/signin/chrome_signin_client_factory.h"
 #include "chrome/browser/signin/gaia_cookie_manager_service_factory.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/signin/core/browser/fake_signin_manager.h"
 
@@ skipping 23 matching lines @@
       signin_client, ProfileOAuth2TokenServiceFactory::GetForProfile(profile),
       account_tracker_service,
       GaiaCookieManagerServiceFactory::GetForProfile(profile)));
   manager->Initialize(g_browser_process->local_state());
   return std::move(manager);
 #endif
 }
 
 }  // namespace
 
-ChromeRenderViewHostTestHarness::ChromeRenderViewHostTestHarness() {
-}
+ChromeRenderViewHostTestHarness::ChromeRenderViewHostTestHarness()
+    : views_delegate_(base::MakeUnique<views::TestViewsDelegate>()) {}
 
 ChromeRenderViewHostTestHarness::~ChromeRenderViewHostTestHarness() {
 }
 
 TestingProfile* ChromeRenderViewHostTestHarness::profile() {
   return static_cast<TestingProfile*>(browser_context());
 }
 
 void ChromeRenderViewHostTestHarness::TearDown() {
   RenderViewHostTestHarness::TearDown();
 #if defined(USE_ASH)
   ash::Shell::DeleteInstance();
 #endif
 }
 
 content::BrowserContext*
 ChromeRenderViewHostTestHarness::CreateBrowserContext() {
   TestingProfile::Builder builder;
   builder.AddTestingFactory(SigninManagerFactory::GetInstance(),
                             BuildSigninManagerFake);
   return builder.Build().release();
 }