It is time.

ui/views/focus/external_focus_tracker.cc

Index: ui/views/focus/external_focus_tracker.cc
diff --git a/ui/views/focus/external_focus_tracker.cc b/ui/views/focus/external_focus_tracker.cc
deleted file mode 100644
index 293c2e0f5b914b96f8dc93748a7035b2d3dc777a..0000000000000000000000000000000000000000
--- a/ui/views/focus/external_focus_tracker.cc
+++ /dev/null
@@ -1,72 +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.
-
-#include "ui/views/focus/external_focus_tracker.h"
-
-#include "base/logging.h"
-#include "ui/views/focus/view_storage.h"
-#include "ui/views/view.h"
-
-namespace views {
-
-ExternalFocusTracker::ExternalFocusTracker(View* parent_view,
-                                           FocusManager* focus_manager)
-    : focus_manager_(focus_manager),
-      parent_view_(parent_view) {
-  DCHECK(parent_view);
-  view_storage_ = ViewStorage::GetInstance();
-  last_focused_view_storage_id_ = view_storage_->CreateStorageID();
-  // Store the view which is focused when we're created.
-  if (focus_manager_)
-    StartTracking();
-}
-
-ExternalFocusTracker::~ExternalFocusTracker() {
-  view_storage_->RemoveView(last_focused_view_storage_id_);
-  if (focus_manager_)
-    focus_manager_->RemoveFocusChangeListener(this);
-}
-
-void ExternalFocusTracker::OnWillChangeFocus(View* focused_before,
-                                             View* focused_now) {
-  if (focused_now && !parent_view_->Contains(focused_now) &&
-      parent_view_ != focused_now) {
-    // Store the newly focused view.
-    StoreLastFocusedView(focused_now);
-  }
-}
-
-void ExternalFocusTracker::OnDidChangeFocus(View* focused_before,
-                                            View* focused_now) {
-}
-
-void ExternalFocusTracker::FocusLastFocusedExternalView() {
-  View* last_focused_view =
-      view_storage_->RetrieveView(last_focused_view_storage_id_);
-  if (last_focused_view)
-    last_focused_view->RequestFocus();
-}
-
-void ExternalFocusTracker::SetFocusManager(FocusManager* focus_manager) {
-  if (focus_manager_)
-    focus_manager_->RemoveFocusChangeListener(this);
-  focus_manager_ = focus_manager;
-  if (focus_manager_)
-    StartTracking();
-}
-
-void ExternalFocusTracker::StoreLastFocusedView(View* view) {
-  view_storage_->RemoveView(last_focused_view_storage_id_);
-  // If the view is NULL, remove the last focused view from storage, but don't
-  // try to store NULL.
-  if (view != NULL)
-    view_storage_->StoreView(last_focused_view_storage_id_, view);
-}
-
-void ExternalFocusTracker::StartTracking() {
-  StoreLastFocusedView(focus_manager_->GetFocusedView());
-  focus_manager_->AddFocusChangeListener(this);
-}
-
-}  // namespace views