Shuffles and renames ash/common/wm classes

ash/wm/aura/wm_lookup_aura.cc

-// Copyright 2016 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 "ash/wm/aura/wm_lookup_aura.h"
-
-#include "ash/common/wm/wm_layout_manager.h"
-#include "ash/display/window_tree_host_manager.h"
-#include "ash/shell.h"
-#include "ash/wm/aura/wm_root_window_controller_aura.h"
-#include "ash/wm/aura/wm_window_aura.h"
-
-namespace ash {
-namespace wm {
-
-WmLookupAura::WmLookupAura() {
-  WmLookup::Set(this);
-}
-
-WmLookupAura::~WmLookupAura() {
-  WmLookup::Set(nullptr);
-}
-
-WmRootWindowController* WmLookupAura::GetRootWindowControllerWithDisplayId(
-    int64_t id) {
-  return WmRootWindowControllerAura::Get(Shell::GetInstance()
-                                             ->window_tree_host_manager()
-                                             ->GetRootWindowForDisplayId(id));
-}
-
-WmWindow* WmLookupAura::GetWindowForWidget(views::Widget* widget) {
-  return WmWindowAura::Get(widget->GetNativeWindow());
-}
-
-}  // namespace wm
-}  // namespace ash