cros: Remove BaseScreen::Initialize method.

chrome/browser/chromeos/login/screens/base_screen.cc

 // Copyright (c) 2011 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/screens/base_screen.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chromeos/login/screens/base_screen_delegate.h"
 #include "chrome/browser/chromeos/login/screens/model_view_channel.h"
 
@@ skipping 55 matching lines @@
   context_.SetString16List(key, value);
   return *this;
 }
 
 BaseScreen::BaseScreen(BaseScreenDelegate* base_screen_delegate,
                        OobeScreen screen_id)
     : base_screen_delegate_(base_screen_delegate), screen_id_(screen_id) {}
 
 BaseScreen::~BaseScreen() {}
 
-void BaseScreen::Initialize(::login::ScreenContext* context) {
-  if (context)
-    context_.CopyFrom(*context);
-}
+void BaseScreen::OnShow() {}
 
-void BaseScreen::OnShow() {
-}
+void BaseScreen::OnHide() {}
 
-void BaseScreen::OnHide() {
-}
-
-void BaseScreen::OnClose() {
-}
+void BaseScreen::OnClose() {}
 
 bool BaseScreen::IsStatusAreaDisplayed() {
   return true;
 }
 
 void BaseScreen::CommitContextChanges() {
   if (!context_.HasChanges())
     return;
   if (!channel_) {
     LOG(ERROR) << "Model-view channel for " << GetOobeScreenName(screen_id())
@@ skipping 28 matching lines @@
 }
 
 void BaseScreen::OnContextChanged(const base::DictionaryValue& diff) {
   std::vector<::login::ScreenContext::KeyType> keys;
   context_.ApplyChanges(diff, &keys);
   for (const auto& key : keys)
     OnContextKeyUpdated(key);
 }
 
 }  // namespace chromeos