Add View::ReorderChildView and Widget::MoveToTop.

views/view.cc

 // 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 "views/view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 158 matching lines @@
   UpdateTooltip();
   if (GetWidget())
     RegisterChildrenForVisibleBoundsNotification(view);
 
   if (layout_manager_.get())
     layout_manager_->ViewAdded(this, view);
 
   view->MarkTextureDirty();
 }
 
+void View::ReorderChildView(View* view, int index) {
+  DCHECK_EQ(view->parent_, this);
+  if (index < 0)
+    index = child_count() - 1;
+  else if (index >= child_count())
+    return;
+  if (children_[index] == view)
+    return;
+
+  const Views::iterator i(std::find(children_.begin(), children_.end(), view));
+  DCHECK(i != children_.end());
+  children_.erase(i);
+
+  // Unlink the view first
+  View* next_focusable = view->next_focusable_view_;
+  View* prev_focusable = view->previous_focusable_view_;
+  if (prev_focusable)
+    prev_focusable->next_focusable_view_ = next_focusable;
+  if (next_focusable)
+    next_focusable->previous_focusable_view_ = prev_focusable;
+
+  // Add it in the specified index now.
+  InitFocusSiblings(view, index);
+  children_.insert(children_.begin() + index, view);
+}
+
 void View::RemoveChildView(View* view) {
   DoRemoveChildView(view, true, true, false);
 }
 
 void View::RemoveAllChildViews(bool delete_children) {
   while (!children_.empty())
     DoRemoveChildView(children_.front(), false, false, delete_children);
   UpdateTooltip();
 }
 
@@ skipping 1639 matching lines @@
     result.append(GetChildViewAt(i)->PrintViewGraph(false));
 
   if (first)
     result.append("}\n");
 
   return result;
 }
 #endif
 
 }  // namespace views