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

views/controls/native_control.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/native_control.h"
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlcrack.h>
 #include <atlframe.h>
@@ skipping 128 matching lines @@
   // for radiobuttons and XP style pushbuttons.
   LRESULT OnCtlColor(UINT msg, HDC dc, HWND control) {
     const View *ancestor = parent_;
     while (ancestor) {
       const Background *background = ancestor->background();
       if (background) {
         HBRUSH brush = background->GetNativeControlBrush();
         if (brush)
           return reinterpret_cast<LRESULT>(brush);
       }
-      ancestor = ancestor->GetParent();
+      ancestor = ancestor->parent();
     }
 
     // COLOR_BTNFACE is the default for dialog box backgrounds.
     return reinterpret_cast<LRESULT>(GetSysColorBrush(COLOR_BTNFACE));
   }
 
   LRESULT OnCtlColorBtn(HDC dc, HWND control) {
     return OnCtlColor(WM_CTLCOLORBTN, dc, control);
   }
 
@@ skipping 224 matching lines @@
   } else if (message == WM_DESTROY) {
     ui::SetWindowProc(window, reinterpret_cast<WNDPROC>(original_handler));
     native_control->container_->prop_.reset();
   }
 
   return CallWindowProc(reinterpret_cast<WNDPROC>(original_handler), window,
                         message, w_param, l_param);
 }
 
 }  // namespace views