Removes usage of Compositor/ContextFactory methods

ui/views/examples/examples_main.cc

 // Copyright 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 "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/i18n/icu_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
@@ skipping 35 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::MessageLoopForUI message_loop;
 
   base::i18n::InitializeICU();
 
   ui::RegisterPathProvider();
 
   base::FilePath ui_test_pak_path;
   DCHECK(PathService::Get(ui::UI_TEST_PAK, &ui_test_pak_path));
   ui::ResourceBundle::InitSharedInstanceWithPakPath(ui_test_pak_path);
@@ skipping 22 matching lines @@
 
     ui::ResourceBundle::CleanupSharedInstance();
   }
 
   ui::ShutdownInputMethod();
 
   aura::Env::DeleteInstance();
 
   return 0;
 }