Remove async functionality from net::CookiePolicy.

net/base/static_cookie_policy_unittest.cc

Index: net/base/static_cookie_policy_unittest.cc
diff --git a/net/base/static_cookie_policy_unittest.cc b/net/base/static_cookie_policy_unittest.cc
index 9fac6669b8fbf6774dd5ca320bccd48204c77940..f701ceb7dba04a107396b3099a570de1d82473f3 100644
--- a/net/base/static_cookie_policy_unittest.cc
+++ b/net/base/static_cookie_policy_unittest.cc
@@ -21,10 +21,10 @@ class StaticCookiePolicyTest : public testing::Test {
     policy_.set_type(type);
   }
   int CanGetCookies(const GURL& url, const GURL& first_party) {
-    return policy_.CanGetCookies(url, first_party, NULL);
+    return policy_.CanGetCookies(url, first_party);
   }
   int CanSetCookie(const GURL& url, const GURL& first_party) {
-    return policy_.CanSetCookie(url, first_party, std::string(), NULL);
+    return policy_.CanSetCookie(url, first_party, std::string());
   }
  protected:
   StaticCookiePolicy policy_;