Move the cookie store implementation into its own directory.

net/cookies/cookie_util_unittest.cc

 // Copyright (c) 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.
 
 #include "base/basictypes.h"
-#include "net/base/cookie_util.h"
+#include "net/cookies/cookie_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(CookieUtilTest, TestDomainIsHostOnly) {
   const struct {
     const char* str;
     const bool is_host_only;
   } tests[] = {
     { "",               true },
     { "www.google.com", true },
     { ".google.com",    false }
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
     EXPECT_EQ(tests[i].is_host_only,
               net::cookie_util::DomainIsHostOnly(tests[i].str));
   }
 }