ash/wm: Remove dead code.

ui/wm/core/nested_accelerator_controller.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/wm/core/nested_accelerator_controller.h"
-
-#include <utility>
-
-#include "base/auto_reset.h"
-#include "base/bind.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::PrepareNestedLoopClosures(
-    base::MessagePumpDispatcher* nested_dispatcher,
-    base::Closure* run_closure,
-    base::Closure* quit_closure) {
-  scoped_ptr<NestedAcceleratorDispatcher> old_accelerator_dispatcher =
-      std::move(accelerator_dispatcher_);
-  accelerator_dispatcher_ = NestedAcceleratorDispatcher::Create(
-      dispatcher_delegate_.get(), nested_dispatcher);
-
-  scoped_ptr<base::RunLoop> run_loop = accelerator_dispatcher_->CreateRunLoop();
-  *quit_closure =
-      base::Bind(&NestedAcceleratorController::QuitNestedMessageLoop,
-                 base::Unretained(this),
-                 run_loop->QuitClosure());
-  *run_closure = base::Bind(&NestedAcceleratorController::RunNestedMessageLoop,
-                            base::Unretained(this),
-                            base::Passed(&run_loop),
-                            base::Passed(&old_accelerator_dispatcher));
-}
-
-void NestedAcceleratorController::RunNestedMessageLoop(
-    scoped_ptr<base::RunLoop> run_loop,
-    scoped_ptr<NestedAcceleratorDispatcher> old_accelerator_dispatcher) {
-  run_loop->Run();
-  accelerator_dispatcher_ = std::move(old_accelerator_dispatcher);
-}
-
-void NestedAcceleratorController::QuitNestedMessageLoop(
-    const base::Closure& quit_runloop) {
-  quit_runloop.Run();
-  accelerator_dispatcher_.reset();
-}
-
-}  // namespace wm