Account for server vs host clock skew in cookie expiration times.

net/cookies/cookie_store_unittest.h

 // 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.
 
 #ifndef NET_COOKIES_COOKIE_STORE_UNITTEST_H_
 #define NET_COOKIES_COOKIE_STORE_UNITTEST_H_
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/string_tokenizer.h"
@@ skipping 129 matching lines @@
     DCHECK(cs);
     SetCookieCallback callback;
     cs->SetCookieWithOptionsAsync(
         url, cookie_line, options,
         base::Bind(&SetCookieCallback::Run, base::Unretained(&callback)));
     RunFor(kTimeout);
     EXPECT_TRUE(callback.did_run());
     return callback.result();
   }
 
+  bool SetCookieWithServerTime(CookieStore* cs,
+                               const GURL& url,
+                               const std::string& cookie_line,
+                               const base::Time& server_time) {
+    CookieOptions options;
+    if (!CookieStoreTestTraits::supports_http_only)
+      options.set_include_httponly();
+    options.set_server_time(server_time);
+    return SetCookieWithOptions(cs, url, cookie_line, options);
+  }
+
   bool SetCookie(CookieStore* cs,
                  const GURL& url,
                  const std::string& cookie_line) {
     CookieOptions options;
     if (!CookieStoreTestTraits::supports_http_only)
       options.set_include_httponly();
     return SetCookieWithOptions(cs, url, cookie_line, options);
   }
 
   void DeleteCookie(CookieStore* cs,
@@ skipping 535 matching lines @@
   EXPECT_TRUE(this->SetCookie(cs, this->url_google_,
                               std::string(kValidCookieLine) +
                               "; expires=Mon, 18-Apr-1977 22:50:13 GMT"));
   this->MatchCookieLines("", this->GetCookies(cs, this->url_google_));
 
   // Create a persistent cookie.
   EXPECT_TRUE(this->SetCookie(cs, this->url_google_,
                               std::string(kValidCookieLine) +
                               "; expires=Mon, 18-Apr-22 22:50:13 GMT"));
   this->MatchCookieLines("A=B", this->GetCookies(cs, this->url_google_));
+  // Check that it is not deleted with significant enough clock skew.
+  base::Time server_time;
+  EXPECT_TRUE(base::Time::FromString("Sun, 17-Apr-1977 22:50:13 GMT",
+                                     &server_time));
+  EXPECT_TRUE(this->SetCookieWithServerTime(
+      cs, this->url_google_,
+      std::string(kValidCookieLine) +
+      "; expires=Mon, 18-Apr-1977 22:50:13 GMT",
+      server_time));
+  this->MatchCookieLines("A=B", this->GetCookies(cs, this->url_google_));
+
+  // Create a persistent cookie.
+  EXPECT_TRUE(this->SetCookie(cs, this->url_google_,
+                              std::string(kValidCookieLine) +
+                              "; expires=Mon, 18-Apr-22 22:50:13 GMT"));
+  this->MatchCookieLines("A=B", this->GetCookies(cs, this->url_google_));
   // Delete it via Expires, with a unix epoch of 0.
   EXPECT_TRUE(this->SetCookie(cs, this->url_google_,
                               std::string(kValidCookieLine) +
                               "; expires=Thu, 1-Jan-1970 00:00:00 GMT"));
   this->MatchCookieLines("", this->GetCookies(cs, this->url_google_));
 }
 
 TYPED_TEST_P(CookieStoreTest, TestDeleteAllCreatedBetween) {
   scoped_refptr<CookieStore> cs(this->GetCookieStore());
   const base::Time last_month = base::Time::Now() -
@@ skipping 368 matching lines @@
 }
 
 REGISTER_TYPED_TEST_CASE_P(MultiThreadedCookieStoreTest,
     ThreadCheckGetCookies, ThreadCheckGetCookiesWithOptions,
     ThreadCheckGetCookiesWithInfo, ThreadCheckSetCookieWithOptions,
     ThreadCheckDeleteCookie, ThreadCheckDeleteSessionCookies);
 
 }  // namespace net
 
 #endif  // NET_COOKIES_COOKIE_STORE_UNITTEST_H_