Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/wm/focus_rules.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/focus_rules.h"
 
+#include "ash/common/shell_delegate.h"
+#include "ash/common/wm_shell.h"
+#include "ash/common/wm_window.h"
 #include "ash/public/cpp/shell_window_ids.h"
-#include "ash/shell_delegate.h"
 #include "ash/wm/window_state.h"
-#include "ash/wm_shell.h"
-#include "ash/wm_window.h"
 
 namespace ash {
 
 bool IsToplevelWindow(WmWindow* window) {
   DCHECK(window);
   // The window must in a valid hierarchy.
   if (!window->GetRootWindow())
     return false;
 
   // The window must exist within a container that supports activation.
@@ skipping 28 matching lines @@
 
   if (!window->GetTargetVisibility())
     return false;
 
   const int parent_shell_window_id = window->GetParent()->GetShellWindowId();
   return parent_shell_window_id == kShellWindowId_DefaultContainer ||
          parent_shell_window_id == kShellWindowId_LockScreenContainer;
 }
 
 }  // namespace ash