[Extensions Views] Update the extension installed bubble's sync promo

chrome/browser/ui/bookmarks/bookmark_bubble_delegate.h

Index: chrome/browser/ui/bookmarks/bookmark_bubble_delegate.h
diff --git a/chrome/browser/ui/bookmarks/bookmark_bubble_delegate.h b/chrome/browser/ui/bookmarks/bookmark_bubble_delegate.h
deleted file mode 100644
index 4927693ff191e3ee8625f28284a01f7139ba6bbb..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/bookmarks/bookmark_bubble_delegate.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2013 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_BOOKMARKS_BOOKMARK_BUBBLE_DELEGATE_H_
-#define CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BUBBLE_DELEGATE_H_
-
-class BookmarkBubbleDelegate {
- public:
-  virtual ~BookmarkBubbleDelegate() {}
-  virtual void OnSignInLinkClicked() = 0;
-};
-
-#endif  // CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BUBBLE_DELEGATE_H_