Revert of Refactor and move ash independent nested accelerator code to ui/wm/core

ui/wm/core/nested_accelerator_controller.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 "ui/wm/core/nested_accelerator_controller.h"
-
-#include "base/auto_reset.h"
-#include "base/run_loop.h"
-#include "ui/wm/core/nested_accelerator_delegate.h"
-#include "ui/wm/core/nested_accelerator_dispatcher.h"
-
-namespace wm {
-
-NestedAcceleratorController::NestedAcceleratorController(
-    NestedAcceleratorDelegate* delegate)
-    : dispatcher_delegate_(delegate) {
-  DCHECK(delegate);
-}
-
-NestedAcceleratorController::~NestedAcceleratorController() {
-}
-
-void NestedAcceleratorController::RunWithDispatcher(
-    base::MessagePumpDispatcher* nested_dispatcher) {
-  base::MessageLoopForUI* loop = base::MessageLoopForUI::current();
-  base::MessageLoopForUI::ScopedNestableTaskAllower allow_nested(loop);
-
-  scoped_ptr<NestedAcceleratorDispatcher> old_accelerator_dispatcher =
-      accelerator_dispatcher_.Pass();
-  accelerator_dispatcher_ = NestedAcceleratorDispatcher::Create(
-      dispatcher_delegate_.get(), nested_dispatcher);
-
-  // TODO(jbates) crbug.com/134753 Find quitters of this RunLoop and have them
-  //              use run_loop.QuitClosure().
-  scoped_ptr<base::RunLoop> run_loop = accelerator_dispatcher_->CreateRunLoop();
-  base::AutoReset<base::Closure> reset_closure(&quit_closure_,
-                                               run_loop->QuitClosure());
-  run_loop->Run();
-  accelerator_dispatcher_ = old_accelerator_dispatcher.Pass();
-}
-
-void NestedAcceleratorController::QuitNestedMessageLoop() {
-  CHECK(!quit_closure_.is_null());
-  quit_closure_.Run();
-  accelerator_dispatcher_.reset();
-}
-
-}  // namespace wm