Removes usage of Compositor/ContextFactory methods

ui/aura/bench/bench_main.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.
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
 #endif
 
 #include "base/at_exit.h"
 #include "base/bind.h"
@@ skipping 281 matching lines @@
   // This demo uses InProcessContextFactory which uses X on a separate Gpu
   // thread.
   gfx::InitializeThreadedX11();
 #endif
 
   gfx::GLSurface::InitializeOneOff();
 
   // The ContextFactory must exist before any Compositors are created.
   scoped_ptr<ui::InProcessContextFactory> context_factory(
       new ui::InProcessContextFactory());
-  ui::ContextFactory::SetInstance(context_factory.get());
 
   base::i18n::InitializeICU();
 
   base::MessageLoopForUI message_loop;
   aura::Env::CreateInstance(true);
   aura::Env::GetInstance()->set_context_factory(context_factory.get());
   scoped_ptr<aura::TestScreen> test_screen(
       aura::TestScreen::CreateFullscreen());
   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, test_screen.get());
   scoped_ptr<aura::WindowTreeHost> host(
@@ skipping 46 matching lines @@
   ui::PrintLayerHierarchy(host->window()->layer(), gfx::Point(100, 100));
 #endif
 
   host->Show();
   base::MessageLoopForUI::current()->Run();
   focus_client.reset();
   host.reset();
 
   return 0;
 }