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

chrome/browser/chromeos/login/ui/webui_login_display.cc

Index: chrome/browser/chromeos/login/ui/webui_login_display.cc
diff --git a/chrome/browser/chromeos/login/ui/webui_login_display.cc b/chrome/browser/chromeos/login/ui/webui_login_display.cc
index 7e5b35786de2cc79c00e2c194a9c30ea158c7999..9ed1d781376335c6d1a9058e0cff917f4f676aeb 100644
--- a/chrome/browser/chromeos/login/ui/webui_login_display.cc
+++ b/chrome/browser/chromeos/login/ui/webui_login_display.cc
@@ -214,6 +214,16 @@ void WebUILoginDisplay::ShowControlBar(bool show) {
     webui_handler_->ShowControlBar(show);
 }
 
+void WebUILoginDisplay::SetKeyboardState(bool shown) {
+  if (webui_handler_)
+    webui_handler_->SetKeyboardState(shown);
+}
+
+void WebUILoginDisplay::SetClientAreaSize(int width, int height) {
+  if (webui_handler_)
+    webui_handler_->SetClientAreaSize(width, height);
+}
+
 // WebUILoginDisplay, NativeWindowDelegate implementation: ---------------------
 gfx::NativeWindow WebUILoginDisplay::GetNativeWindow() const {
   return parent_window();