Convert enable_one_click_signin to new buildflag system

chrome/browser/ui/browser_window.h

 // Copyright 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_BROWSER_WINDOW_H_
 #define CHROME_BROWSER_UI_BROWSER_WINDOW_H_
 
 #include "base/callback_forward.h"
 #include "build/build_config.h"
 #include "chrome/browser/lifetime/browser_close_manager.h"
 #include "chrome/browser/signin/chrome_signin_helper.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
 #include "chrome/browser/ui/bookmarks/bookmark_bar.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/exclusive_access/exclusive_access_bubble_type.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/sync/one_click_signin_sync_starter.h"
+#include "chrome/common/features.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "components/security_state/security_state_model.h"
 #include "components/signin/core/browser/signin_header_helper.h"
 #include "components/translate/core/common/translate_errors.h"
 #include "ui/base/base_window.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/native_widget_types.h"
 
 class Browser;
 class DownloadShelf;
@@ skipping 222 matching lines @@
   // Shows the translate bubble.
   //
   // |is_user_gesture| is true when the bubble is shown on the user's deliberate
   // action.
   virtual void ShowTranslateBubble(
       content::WebContents* contents,
       translate::TranslateStep step,
       translate::TranslateErrors::Type error_type,
       bool is_user_gesture) = 0;
 
-#if defined(ENABLE_ONE_CLICK_SIGNIN)
+#if BUILDFLAG(ENABLE_ONE_CLICK_SIGNIN)
   enum OneClickSigninBubbleType {
     ONE_CLICK_SIGNIN_BUBBLE_TYPE_BUBBLE,
     ONE_CLICK_SIGNIN_BUBBLE_TYPE_MODAL_DIALOG,
     ONE_CLICK_SIGNIN_BUBBLE_TYPE_SAML_MODAL_DIALOG
   };
 
   // Callback type used with the ShowOneClickSigninBubble() method.  If the
   // user chooses to accept the sign in, the callback is called to start the
   // sync process.
   typedef base::Callback<void(OneClickSigninSyncStarter::StartSyncMode)>
@@ skipping 116 matching lines @@
   // Returns object implementing ExclusiveAccessContext interface.
   virtual ExclusiveAccessContext* GetExclusiveAccessContext() = 0;
 
  protected:
   friend class BrowserCloseManager;
   friend class BrowserView;
   virtual void DestroyBrowser() = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_WINDOW_H_