Revert of Implement $Secure- cookie prefix

net/cookies/cookie_store_unittest.h

Index: net/cookies/cookie_store_unittest.h
diff --git a/net/cookies/cookie_store_unittest.h b/net/cookies/cookie_store_unittest.h
index f62f7ac2f67078d9642d3eb8e4e36ac76fdfa29b..b380fbcab05ac73a31d377de50582a53ffb90b70 100644
--- a/net/cookies/cookie_store_unittest.h
+++ b/net/cookies/cookie_store_unittest.h
@@ -69,9 +69,6 @@
 //   // Time to wait between two cookie insertions to ensure that cookies have
 //   // different creation times.
 //   static const int creation_time_granularity_in_ms;
-//
-//   // The cookie store enforces cookie prefixes.
-//   static const bool enforces_prefixes;
 // };
 
 template <class CookieStoreTestTraits>
@@ -158,8 +155,6 @@
     CookieOptions options;
     if (!CookieStoreTestTraits::supports_http_only)
       options.set_include_httponly();
-    if (CookieStoreTestTraits::enforces_prefixes)
-      options.set_enforce_prefixes();
     return SetCookieWithOptions(cs, url, cookie_line, options);
   }