chromeos: Move files in //ash/common to //ash, part 2

ash/common/wm/switchable_windows.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 "ash/common/wm/switchable_windows.h"
-
-#include "ash/common/wm_window.h"
-#include "ash/public/cpp/shell_window_ids.h"
-
-namespace ash {
-namespace wm {
-
-const int kSwitchableWindowContainerIds[] = {
-    kShellWindowId_DefaultContainer, kShellWindowId_AlwaysOnTopContainer,
-    kShellWindowId_DockedContainer, kShellWindowId_PanelContainer,
-    kShellWindowId_AppListContainer};
-
-const size_t kSwitchableWindowContainerIdsLength =
-    arraysize(kSwitchableWindowContainerIds);
-
-bool IsSwitchableContainer(const WmWindow* window) {
-  if (!window)
-    return false;
-  const int shell_window_id = window->GetShellWindowId();
-  for (size_t i = 0; i < kSwitchableWindowContainerIdsLength; ++i) {
-    if (shell_window_id == kSwitchableWindowContainerIds[i])
-      return true;
-  }
-  return false;
-}
-
-}  // namespace wm
-}  // namespace ash