Focus the textfield when doing a JS prompt

chrome/browser/jsmessage_box_handler.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_BROWSER_JSMESSAGE_BOX_HANDLER_H__
 #define CHROME_BROWSER_JSMESSAGE_BOX_HANDLER_H__
 
 #include "chrome/common/ipc_message.h"
 #include "chrome/views/app_modal_dialog_delegate.h"
 #include "chrome/common/notification_service.h"
@@ skipping 29 matching lines @@
   virtual bool Cancel();
   virtual bool Accept();
 
   // views::AppModalDialogDelegate
   virtual void ShowModalDialog();
   virtual void ActivateModalDialog();
 
   // views::WindowDelegate Methods:
   virtual bool IsModal() const { return true; }
   virtual views::View* GetContentsView();
+  virtual views::View* GetInitiallyFocusedView() const;
 
  protected:
   // Use RunJavaScriptMessageBox to use.
   JavascriptMessageBoxHandler(WebContents* web_contents,
                               int dialog_flags,
                               const std::wstring& message_text,
                               const std::wstring& default_prompt_text,
                               bool display_suppress_checkbox,
                               IPC::Message* reply_msg);
 
@@ skipping 17 matching lines @@
   int dialog_flags_;
 
   // The dialog if it is currently visible.
   views::Window* dialog_;
 
   DISALLOW_EVIL_CONSTRUCTORS(JavascriptMessageBoxHandler);
 };
 
 #endif // CHROME_BROWSER_JSMESSAGE_BOX_HANDLER_H__