net: make CanonicalCookie's constructor private

ios/net/cookies/system_cookie_util_unittest.mm

Index: ios/net/cookies/system_cookie_util_unittest.mm
diff --git a/ios/net/cookies/system_cookie_util_unittest.mm b/ios/net/cookies/system_cookie_util_unittest.mm
index ddca58306cbbf85f099075e314be8b7dfef64b8a..17ae8c7ba884dba64dd5db9cc14d52df8bb54ad4 100644
--- a/ios/net/cookies/system_cookie_util_unittest.mm
+++ b/ios/net/cookies/system_cookie_util_unittest.mm
@@ -18,6 +18,7 @@ namespace net {
 
 namespace {
 
+const char kCookieURL[] = "http://example.com";
 const char kCookieDomain[] = "domain";
 const char kCookieName[] = "name";
 const char kCookiePath[] = "path/";
@@ -26,12 +27,10 @@ const char kCookieValueInvalidUtf8[] = "\x81r\xe4\xbd\xa0\xe5\xa5\xbd";
 
 void CheckSystemCookie(const base::Time& expires, bool secure, bool httponly) {
   // Generate a canonical cookie.
-  net::CanonicalCookie canonical_cookie = net::CanonicalCookie(
-      GURL(), kCookieName, kCookieValue, kCookieDomain, kCookiePath,
+  net::CanonicalCookie canonical_cookie = *net::CanonicalCookie::Create(
+      GURL(kCookieURL), kCookieName, kCookieValue, std::string(), kCookiePath,
       base::Time(),  // creation
-      expires,
-      base::Time(),  // last_access
-      secure, httponly, net::CookieSameSite::DEFAULT_MODE,
+      expires, secure, httponly, net::CookieSameSite::DEFAULT_MODE, false,
       net::COOKIE_PRIORITY_DEFAULT);
   // Convert it to system cookie.
   base::scoped_nsobject<NSHTTPCookie> system_cookie(
@@ -116,14 +115,14 @@ TEST(CookieUtil, SystemCookieFromCanonicalCookie) {
 
 TEST(CookieUtil, SystemCookieFromBadCanonicalCookie) {
   // Generate a bad canonical cookie (value is invalid utf8).
-  net::CanonicalCookie bad_canonical_cookie = net::CanonicalCookie(
-      GURL(), kCookieName, kCookieValueInvalidUtf8, kCookieDomain, kCookiePath,
+  net::CanonicalCookie bad_canonical_cookie = *net::CanonicalCookie::Create(
+      GURL(kCookieURL), kCookieName, kCookieValueInvalidUtf8, std::string(),
+      kCookiePath,
       base::Time(),  // creation
       base::Time(),  // expires
-      base::Time(),  // last_access
       false,         // secure
       false,         // httponly
-      net::CookieSameSite::DEFAULT_MODE, net::COOKIE_PRIORITY_DEFAULT);
+      net::CookieSameSite::DEFAULT_MODE, false, net::COOKIE_PRIORITY_DEFAULT);
   // Convert it to system cookie.
   base::scoped_nsobject<NSHTTPCookie> system_cookie(
       [SystemCookieFromCanonicalCookie(bad_canonical_cookie) retain]);