Update a bunch of OWNERS files.

ui/v2/public/view_observer.h

-// Copyright (c) 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 UI_V2_PUBLIC_VIEW_OBSERVER_H_
-#define UI_V2_PUBLIC_VIEW_OBSERVER_H_
-
-#include "ui/v2/public/v2_export.h"
-
-namespace gfx {
-class Rect;
-}
-
-namespace v2 {
-
-class View;
-
-// Observe View disposition changes. -ing methods are called before the change
-// is committed, -ed methods are called after.
-class V2_EXPORT ViewObserver {
- public:
-  // Whether a notification is being sent before or after some property has
-  // changed.
-  enum DispositionChangePhase {
-    DISPOSITION_CHANGING,
-    DISPOSITION_CHANGED
-  };
-
-  // Tree.
-  struct TreeChangeParams {
-    TreeChangeParams();
-    View* target;
-    View* old_parent;
-    View* new_parent;
-    View* receiver;
-    DispositionChangePhase phase;
-  };
-
-  // Called when a node is added or removed. Notifications are sent to the
-  // following hierarchies in this order:
-  // 1. |target|.
-  // 2. |target|'s child hierarchy.
-  // 3. |target|'s parent hierarchy in its |old_parent|
-  //        (only for Changing notifications).
-  // 3. |target|'s parent hierarchy in its |new_parent|.
-  //        (only for Changed notifications).
-  // This sequence is performed via the OnTreeChange notification below before
-  // and after the change is committed.
-  virtual void OnViewTreeChange(const TreeChangeParams& params) {}
-
-  // Disposition.
-  virtual void OnViewDestroy(View* view, DispositionChangePhase phase) {}
-  virtual void OnViewBoundsChanged(View* view,
-                                   const gfx::Rect& old_bounds,
-                                   const gfx::Rect& new_bounds) {}
-  virtual void OnViewVisibilityChange(View* view,
-                                      DispositionChangePhase phase) {}
-
- protected:
-  virtual ~ViewObserver() {}
-};
-
-}  // namespace v2
-
-#endif  // UI_V2_PUBLIC_VIEW_OBSERVER_H_