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

views/window/client_view.cc

 // Copyright (c) 2010 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 "base/logging.h"
 #include "views/window/client_view.h"
 #if defined(OS_LINUX)
 #include "views/window/hit_test.h"
 #endif
 #include "views/window/window.h"
@@ skipping 34 matching lines @@
   if (contents_view_)
     contents_view_->SetBounds(0, 0, width(), height());
 }
 
 void ClientView::ViewHierarchyChanged(bool is_add, View* parent, View* child) {
   if (is_add && child == this) {
     DCHECK(GetWidget());
     DCHECK(contents_view_); // |contents_view_| must be valid now!
     // Insert |contents_view_| at index 0 so it is first in the focus chain.
     // (the OK/Cancel buttons are inserted before contents_view_)
-    AddChildView(0, contents_view_);
+    AddChildViewAt(contents_view_, 0);
   }
 }
 
 void ClientView::OnBoundsChanged() {
   // Overridden to do nothing. The NonClientView manually calls Layout on the
   // ClientView when it is itself laid out, see comment in
   // NonClientView::Layout.
 }
 
 AccessibilityTypes::Role ClientView::GetAccessibleRole() {
   return AccessibilityTypes::ROLE_CLIENT;
 }
 
 }  // namespace views