Move the cookie store implementation into its own directory.

net/cookies/cookie_store_test_helpers.h

Index: net/cookies/cookie_store_test_helpers.h
diff --git a/net/base/cookie_store_test_helpers.h b/net/cookies/cookie_store_test_helpers.h
similarity index 94%
copy from net/base/cookie_store_test_helpers.h
copy to net/cookies/cookie_store_test_helpers.h
index 34746558307bb5782743c76ccbec00f0fcfb8648..8560f5ab93c7e3f3c449398bf50e7d21b527122d 100644
--- a/net/base/cookie_store_test_helpers.h
+++ b/net/cookies/cookie_store_test_helpers.h
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef NET_BASE_COOKIE_STORE_TEST_HELPERS_H_
-#define NET_BASE_COOKIE_STORE_TEST_HELPERS_H_
+#ifndef NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_
+#define NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_
 #pragma once
 
-#include "net/base/cookie_monster.h"
+#include "net/cookies/cookie_monster.h"
 
 #include <string>
 #include <vector>
@@ -102,4 +102,4 @@ class DelayedCookieMonster : public CookieStore {
 
 }  // namespace net
 
-#endif  // NET_BASE_COOKIE_STORE_TEST_HELPERS_H_
+#endif  // NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_