Update behavior of one-click infobar to remove modal dialog, add "undo".

chrome/browser/ui/cocoa/browser_window_cocoa.h

 // Copyright (c) 2012 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_UI_COCOA_BROWSER_WINDOW_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_COCOA_H_
 #pragma once
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 77 matching lines @@
   virtual void ToggleBookmarkBar() OVERRIDE;
   virtual void ShowAboutChromeDialog() OVERRIDE;
   virtual void ShowUpdateChromeDialog() OVERRIDE;
   virtual void ShowTaskManager() OVERRIDE;
   virtual void ShowBackgroundPages() OVERRIDE;
   virtual void ShowBookmarkBubble(const GURL& url,
                                   bool already_bookmarked) OVERRIDE;
   virtual void ShowChromeToMobileBubble() OVERRIDE;
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
   virtual void ShowOneClickSigninBubble(
-      const base::Closure& learn_more_callback,
-      const base::Closure& advanced_callback) OVERRIDE;
+      const base::Callback<void(bool)>& start_sync_callback) OVERRIDE;
 #endif
   virtual bool IsDownloadShelfVisible() const OVERRIDE;
   virtual DownloadShelf* GetDownloadShelf() OVERRIDE;
   virtual void ConfirmBrowserCloseWithPendingDownloads() OVERRIDE;
   virtual void UserChangedTheme() OVERRIDE;
   virtual int GetExtraRenderViewHeight() const OVERRIDE;
   virtual void WebContentsFocused(content::WebContents* contents) OVERRIDE;
   virtual void ShowPageInfo(Profile* profile,
                             const GURL& url,
                             const content::SSLStatus& ssl,
@@ skipping 53 matching lines @@
   PrefChangeRegistrar pref_change_registrar_;
   Browser* browser_;  // weak, owned by controller
   BrowserWindowController* controller_;  // weak, owns us
   base::WeakPtrFactory<Browser> confirm_close_factory_;
   scoped_nsobject<NSString> pending_window_title_;
   ui::WindowShowState initial_show_state_;
   NSInteger attention_request_id_;  // identifier from requestUserAttention
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_COCOA_H_