Disable VK overscroll for login/out-of-box.

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 <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 871 matching lines @@
 }
 
 void SigninScreenHandler::ShowSigninUI(const std::string& email) {
   core_oobe_actor_->ShowSignInUI(email);
 }
 
 void SigninScreenHandler::ShowControlBar(bool show) {
   core_oobe_actor_->ShowControlBar(show);
 }
 
+void SigninScreenHandler::SetKeyboardState(bool shown) {
+  core_oobe_actor_->SetKeyboardState(shown);
+}
+
 void SigninScreenHandler::ShowGaiaPasswordChanged(const std::string& username) {
   email_ = username;
   password_changed_for_.insert(email_);
   core_oobe_actor_->ShowSignInUI(email_);
   CallJS("login.setAuthType",
          username,
          static_cast<int>(ONLINE_SIGN_IN),
          base::StringValue(""));
 }
 
@@ skipping 909 matching lines @@
   DCHECK(gaia_screen_handler_);
   return gaia_screen_handler_->frame_state();
 }
 
 net::Error SigninScreenHandler::FrameError() const {
   DCHECK(gaia_screen_handler_);
   return gaia_screen_handler_->frame_error();
 }
 
 }  // namespace chromeos