It is time.

ui/views/focus/external_focus_tracker.h

Index: ui/views/focus/external_focus_tracker.h
diff --git a/ui/views/focus/external_focus_tracker.h b/ui/views/focus/external_focus_tracker.h
deleted file mode 100644
index 3cfacb3baf52afb9fc17aa7d35e299469ff1d4a6..0000000000000000000000000000000000000000
--- a/ui/views/focus/external_focus_tracker.h
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2011 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_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_
-#define UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_
-
-#include "base/compiler_specific.h"
-#include "ui/views/focus/focus_manager.h"
-
-namespace views {
-
-class View;
-class ViewStorage;
-
-// ExternalFocusTracker tracks the last focused view which belongs to the
-// provided focus manager and is not either the provided parent view or one of
-// its descendants. This is generally used if the parent view want to return
-// focus to some other view once it is dismissed. The parent view and the focus
-// manager must exist for the duration of the tracking. If the focus manager
-// must be deleted before this object is deleted, make sure to call
-// SetFocusManager(NULL) first.
-//
-// Typical use: When a view is added to the view hierarchy, it instantiates an
-// ExternalFocusTracker and passes in itself and its focus manager. Then,
-// when that view wants to return focus to the last focused view which is not
-// itself and not a descandant of itself, (usually when it is being closed)
-// it calls FocusLastFocusedExternalView.
-class VIEWS_EXPORT ExternalFocusTracker : public FocusChangeListener {
- public:
-  ExternalFocusTracker(View* parent_view, FocusManager* focus_manager);
-  virtual ~ExternalFocusTracker();
-
-  // FocusChangeListener:
-  virtual void OnWillChangeFocus(View* focused_before,
-                                 View* focused_now) override;
-  virtual void OnDidChangeFocus(View* focused_before,
-                                View* focused_now) override;
-
-  // Focuses last focused view which is not a child of parent view and is not
-  // parent view itself. Returns true if focus for a view was requested, false
-  // otherwise.
-  void FocusLastFocusedExternalView();
-
-  // Sets the focus manager whose focus we are tracking. |focus_manager| can
-  // be NULL, but no focus changes will be tracked. This is useful if the focus
-  // manager went away, but you might later want to start tracking with a new
-  // manager later, or call FocusLastFocusedExternalView to focus the previous
-  // view.
-  void SetFocusManager(FocusManager* focus_manager);
-
- private:
-  // Store the provided view. This view will be focused when
-  // FocusLastFocusedExternalView is called.
-  void StoreLastFocusedView(View* view);
-
-  // Store the currently focused view for our view manager and register as a
-  // listener for future focus changes.
-  void StartTracking();
-
-  // Focus manager which we are a listener for.
-  FocusManager* focus_manager_;
-
-  // ID of the last focused view, which we store in view_storage_.
-  int last_focused_view_storage_id_;
-
-  // Used to store the last focused view which is not a child of
-  // ExternalFocusTracker.
-  ViewStorage* view_storage_;
-
-  // The parent view of views which we should not track focus changes to. We
-  // also do not track changes to parent_view_ itself.
-  View* parent_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExternalFocusTracker);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_