Revert 184868

chrome/browser/net/sqlite_persistent_cookie_store.h

Index: chrome/browser/net/sqlite_persistent_cookie_store.h
===================================================================
--- chrome/browser/net/sqlite_persistent_cookie_store.h	(revision 184872)
+++ chrome/browser/net/sqlite_persistent_cookie_store.h	(working copy)
@@ -20,7 +20,6 @@
 
 namespace base {
 class FilePath;
-class SequencedTaskRunner;
 }
 
 namespace net {
@@ -37,13 +36,8 @@
  public:
   // If non-NULL, SQLitePersistentCookieStore will keep a scoped_refptr to the
   // |clear_on_exit_policy| throughout its lifetime.
-  // All blocking database accesses will be performed on
-  // |background_task_runner|, while |client_task_runner| is used to invoke
-  // callbacks.
   SQLitePersistentCookieStore(
       const base::FilePath& path,
-      const scoped_refptr<base::SequencedTaskRunner>& client_task_runner,
-      const scoped_refptr<base::SequencedTaskRunner>& background_task_runner,
       bool restore_old_session_cookies,
       ClearOnExitPolicy* clear_on_exit_policy);