Rework tree APIs to reflect Google style and more const-correctness....

views/focus/external_focus_tracker.cc

 // Copyright (c) 2006-2008 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 "views/focus/external_focus_tracker.h"
 
 #include "base/logging.h"
 #include "views/view.h"
 #include "views/focus/view_storage.h"
 
@@ skipping 12 matching lines @@
 }
 
 ExternalFocusTracker::~ExternalFocusTracker() {
   view_storage_->RemoveView(last_focused_view_storage_id_);
   if (focus_manager_)
     focus_manager_->RemoveFocusChangeListener(this);
 }
 
 void ExternalFocusTracker::FocusWillChange(View* focused_before,
                                            View* focused_now) {
-  if (focused_now && !parent_view_->IsParentOf(focused_now) &&
+  if (focused_now && !parent_view_->Contains(focused_now) &&
       parent_view_ != focused_now) {
     // Store the newly focused view.
     StoreLastFocusedView(focused_now);
   }
 }
 
 void ExternalFocusTracker::FocusLastFocusedExternalView() {
   View* last_focused_view =
       view_storage_->RetrieveView(last_focused_view_storage_id_);
   if (last_focused_view)
@@ skipping 15 matching lines @@
   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