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

chrome/browser/chromeos/login/wizard_controller.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 "chrome/browser/chromeos/login/wizard_controller.h"
 
 #include <gdk/gdk.h>
 #include <signal.h>
 #include <sys/types.h>
 
@@ skipping 141 matching lines @@
       controller->ShowRegistrationScreen();
 #endif
     } else {
       return false;
     }
 
     return true;
   }
 
   virtual void Layout() {
-    for (int i = 0; i < GetChildViewCount(); ++i) {
+    for (int i = 0; i < child_count(); ++i) {
       views::View* cur = GetChildViewAt(i);
       if (cur->IsVisible())
         cur->SetBounds(0, 0, width(), height());
     }
   }
 
  private:
   scoped_ptr<views::Painter> painter_;
 
 #if !defined(OFFICIAL_BUILD)
@@ skipping 860 matching lines @@
     // user has changed to during OOBE.
     if (!timezone_name.empty()) {
       icu::TimeZone* timezone = icu::TimeZone::createTimeZone(
           icu::UnicodeString::fromUTF8(timezone_name));
       chromeos::CrosLibrary::Get()->GetSystemLibrary()->SetTimezone(timezone);
     }
   }
 }
 
 }  // namespace browser