cros: Break BaseScreenHandler into two classes.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

 // Copyright (c) 2013 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/ui/webui/chromeos/login/signin_screen_handler.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 275 matching lines @@
 }
 
 // SigninScreenHandler implementation ------------------------------------------
 
 SigninScreenHandler::SigninScreenHandler(
     const scoped_refptr<NetworkStateInformer>& network_state_informer,
     ErrorScreen* error_screen,
     CoreOobeView* core_oobe_view,
     GaiaScreenHandler* gaia_screen_handler,
     JSCallsContainer* js_calls_container)
-    : BaseScreenHandler(js_calls_container),
+    : BaseWebUIHandler(js_calls_container),
       network_state_informer_(network_state_informer),
       error_screen_(error_screen),
       core_oobe_view_(core_oobe_view),
       caps_lock_enabled_(chromeos::input_method::InputMethodManager::Get()
                              ->GetImeKeyboard()
                              ->CapsLockIsEnabled()),
       proxy_auth_dialog_reload_times_(kMaxGaiaReloadForProxyAuthDialog),
       gaia_screen_handler_(gaia_screen_handler),
       touch_view_binding_(this),
       histogram_helper_(new ErrorScreensHistogramHelper("Signin")),
@@ skipping 1341 matching lines @@
   rate.initial_delay_in_ms = auto_repeat_delay;
   rate.repeat_interval_in_ms = auto_repeat_interval;
   input_method::InputMethodManager::Get()
       ->GetImeKeyboard()
       ->SetAutoRepeatEnabled(true);
   input_method::InputMethodManager::Get()->GetImeKeyboard()->SetAutoRepeatRate(
       rate);
 }
 
 }  // namespace chromeos