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

chrome/browser/chromeos/panels/panel_scroller_container.cc

 // Copyright (c) 2009 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 "chrome/browser/chromeos/panels/panel_scroller_container.h"
 
 #include "ui/gfx/canvas.h"
 
 PanelScrollerContainer::PanelScrollerContainer(PanelScroller* scroller,
                                                views::View* contents)
     : views::View(),
       scroller_(scroller),
       contents_(contents) {
-  AddChildView(0, contents_);
+  AddChildViewAt(contents_, 0);
   // TODO(brettw) figure out memory management.
 }
 
 PanelScrollerContainer::~PanelScrollerContainer() {
 }
 
 gfx::Size PanelScrollerContainer::GetPreferredSize() {
   return gfx::Size(100, 500);
 }
 
 void PanelScrollerContainer::Layout() {
 }
 
 void PanelScrollerContainer::Paint(gfx::Canvas* canvas) {
   canvas->DrawLineInt(0xFF000080, 0, 0, size().width(), size().height());
 }