Immediately reject empty cookie headers.

net/url_request/url_request_unittest.cc

 // Copyright (c) 2010 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 "net/url_request/url_request_unittest.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <shlobj.h>
@@ skipping 1542 matching lines @@
     EXPECT_TRUE(d.data_received().find("CookieToNotSave=1")
                 == std::string::npos);
     EXPECT_TRUE(d.data_received().find("CookieToNotUpdate=2")
                 != std::string::npos);
 
     EXPECT_EQ(0, d.blocked_get_cookies_count());
     EXPECT_EQ(0, d.blocked_set_cookie_count());
   }
 }
 
+TEST_F(URLRequestTest, DoNotSaveEmptyCookies) {
+  net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath());
+  ASSERT_TRUE(test_server.Start());
+
+  scoped_refptr<TestURLRequestContext> context = new TestURLRequestContext();
+
+  // Set up an empty cookie.
+  {
+    TestDelegate d;
+    URLRequest req(test_server.GetURL("set-cookie"), &d);
+    req.set_context(context);
+    req.Start();
+    MessageLoop::current()->Run();
+
+    EXPECT_EQ(0, d.blocked_get_cookies_count());
+    EXPECT_EQ(0, d.blocked_set_cookie_count());
+    EXPECT_EQ(0, d.set_cookie_count());
+  }
+}
+
 TEST_F(URLRequestTest, DoNotSendCookies_ViaPolicy_Async) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath());
   ASSERT_TRUE(test_server.Start());
 
   scoped_refptr<TestURLRequestContext> context = new TestURLRequestContext();
 
   // Set up a cookie.
   {
     TestDelegate d;
     URLRequest req(test_server.GetURL("set-cookie?CookieToNotSend=1"), &d);
@@ skipping 1107 matching lines @@
   TestURLRequest
       req(test_server_.GetURL("echoheaderoverride?Accept-Charset"), &d);
   req.set_context(new TestURLRequestContext());
   net::HttpRequestHeaders headers;
   headers.SetHeader(net::HttpRequestHeaders::kAcceptCharset, "koi-8r");
   req.SetExtraRequestHeaders(headers);
   req.Start();
   MessageLoop::current()->Run();
   EXPECT_EQ(std::string("koi-8r"), d.data_received());
 }