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

views/controls/button/radio_button.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 "views/controls/button/radio_button.h"
 
 #include "base/logging.h"
 #include "views/widget/root_view.h"
 
 namespace views {
@@ skipping 16 matching lines @@
 // RadioButton, Checkbox overrides:
 
 void RadioButton::SetChecked(bool checked) {
   if (checked == RadioButton::checked())
     return;
   if (native_wrapper_ &&
       !native_wrapper_->UsesNativeRadioButtonGroup() && checked) {
     // We can't just get the root view here because sometimes the radio
     // button isn't attached to a root view (e.g., if it's part of a tab page
     // that is currently not active).
-    View* container = GetParent();
-    while (container && container->GetParent())
-      container = container->GetParent();
+    View* container = parent();
+    while (container && container->parent())
+      container = container->parent();
     if (container) {
       std::vector<View*> other;
       container->GetViewsWithGroup(GetGroup(), &other);
       std::vector<View*>::iterator i;
       for (i = other.begin(); i != other.end(); ++i) {
         if (*i != this) {
           if ((*i)->GetClassName() != kViewClassName) {
             NOTREACHED() << "radio-button has same group as other non "
                             "radio-button views.";
             continue;
@@ skipping 54 matching lines @@
 
 NativeButtonWrapper* RadioButton::CreateWrapper() {
   NativeButtonWrapper* native_wrapper =
       NativeButtonWrapper::CreateRadioButtonWrapper(this);
   native_wrapper->UpdateLabel();
   native_wrapper->UpdateChecked();
   return native_wrapper;
 }
 
 }  // namespace views