ui + mus: Split ContextFactory into ContextFactory(Client) and ContextFactoryPrivate

ui/views_content_client/views_content_client_main_parts.cc

 // Copyright 2014 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 "ui/views_content_client/views_content_client_main_parts.h"
 
 #include <utility>
 
 #include "base/run_loop.h"
 #include "content/public/browser/context_factory.h"
@@ skipping 14 matching lines @@
 }
 
 void ViewsContentClientMainParts::PreMainMessageLoopRun() {
   ui::MaterialDesignController::Initialize();
   ui::InitializeInputMethodForTesting();
   browser_context_.reset(new content::ShellBrowserContext(false, NULL));
 
   std::unique_ptr<views::TestViewsDelegate> test_views_delegate(
       new views::DesktopTestViewsDelegate);
   test_views_delegate->set_context_factory(content::GetContextFactory());
+  test_views_delegate->set_context_factory_private(
+      content::GetContextFactoryPrivate());
   views_delegate_ = std::move(test_views_delegate);
 }
 
 void ViewsContentClientMainParts::PostMainMessageLoopRun() {
   browser_context_.reset();
   views_delegate_.reset();
 }
 
 bool ViewsContentClientMainParts::MainMessageLoopRun(int* result_code) {
   base::RunLoop run_loop;
   run_loop.Run();
   return true;
 }
 
 }  // namespace ui