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

chrome/browser/ui/webui/chromeos/login/core_oobe_handler.h

Index: chrome/browser/ui/webui/chromeos/login/core_oobe_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.h b/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.h
index c4ba5abaf130fc1cdae9d3674e59ff6d55d08137..f399214b5b554d2867da9e00f066378d194dc5d4 100644
--- a/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.h
@@ -77,6 +77,8 @@ class CoreOobeHandler : public BaseScreenHandler,
   virtual void ClearErrors() OVERRIDE;
   virtual void ReloadContent(const base::DictionaryValue& dictionary) OVERRIDE;
   virtual void ShowControlBar(bool show) OVERRIDE;
+  virtual void SetKeyboardState(bool shown) OVERRIDE;
+  virtual void SetClientAreaSize(int width, int height) OVERRIDE;
   virtual void ShowDeviceResetScreen() OVERRIDE;
 
   // Handlers for JS WebUI messages.
@@ -107,6 +109,12 @@ class CoreOobeHandler : public BaseScreenHandler,
   // Updates the device requisition string on the UI side.
   void UpdateDeviceRequisition();
 
+  // Updates virtual keyboard state.
+  void UpdateKeyboardState();
+
+  // Updates client area size based on the primary screen size.
+  void UpdateClientAreaSize();
+
   // Notification of a change in the accessibility settings.
   void OnAccessibilityStatusChanged(
       const AccessibilityStatusEventDetails& details);