Moves common code in ash/wm/overview to ash/common/wm/overview

ash/common/wm/overview/window_selector.h

 // Copyright 2013 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.
 
-#ifndef ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_
-#define ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_
+#ifndef ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_H_
+#define ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "ash/common/wm_activation_observer.h"
@@ skipping 18 matching lines @@
 // The WindowSelector shows a grid of all of your windows, allowing to select
 // one by clicking or tapping on it.
 class ASH_EXPORT WindowSelector : public display::DisplayObserver,
                                   public WmWindowObserver,
                                   public WmActivationObserver,
                                   public views::TextfieldController {
  public:
   // Returns true if the window can be selected in overview mode.
   static bool IsSelectable(WmWindow* window);
 
-  enum Direction {
-    LEFT,
-    UP,
-    RIGHT,
-    DOWN
-  };
+  enum Direction { LEFT, UP, RIGHT, DOWN };
 
   using WindowList = std::vector<WmWindow*>;
 
   explicit WindowSelector(WindowSelectorDelegate* delegate);
   ~WindowSelector() override;
 
   // Initialize with the windows that can be selected.
   void Init(const WindowList& windows);
 
   // Perform cleanup that cannot be done in the destructor.
@@ skipping 118 matching lines @@
 
   // The distance between the top edge of the screen and the bottom edge of
   // the text filtering textfield.
   int text_filter_bottom_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSelector);
 };
 
 }  // namespace ash
 
-#endif  // ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_
+#endif  // ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_H_