Implement delete methods for the various CannedBrowsingDataHelpers.

chrome/browser/browsing_data/browsing_data_cookie_helper_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 "chrome/browser/browsing_data/browsing_data_cookie_helper.h"
 
 #include "base/bind.h"
 #include "base/run_loop.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread_bundle.h"
@@ skipping 199 matching lines @@
 
   net::CanonicalCookie cookie = cookie_list_[0];
   cookie_helper->DeleteCookie(cookie);
 
   cookie_helper->StartFetching(
       base::Bind(&BrowsingDataCookieHelperTest::DeleteCallback,
                  base::Unretained(this)));
   base::RunLoop().RunUntilIdle();
 }
 
+TEST_F(BrowsingDataCookieHelperTest, CannedDeleteCookie) {
+  CreateCookiesForTest();
+  scoped_refptr<CannedBrowsingDataCookieHelper> helper(
+      new CannedBrowsingDataCookieHelper(
+          testing_profile_->GetRequestContext()));
+
+  ASSERT_TRUE(helper->empty());
+
+  const GURL origin1("http://www.google.com");
+  const GURL origin2("http://www.gmail.google.com");
+  helper->AddChangedCookie(origin1, origin1, "A=1", net::CookieOptions());
+  helper->AddChangedCookie(origin2, origin2, "B=1", net::CookieOptions());
+
+  helper->StartFetching(
+      base::Bind(&BrowsingDataCookieHelperTest::FetchCallback,
+                 base::Unretained(this)));
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_EQ(2u, helper->GetCookieCount());
+
+  helper->DeleteCookie(cookie_list_[0]);
+
+  EXPECT_EQ(1u, helper->GetCookieCount());
+  helper->StartFetching(
+      base::Bind(&BrowsingDataCookieHelperTest::DeleteCallback,
+                 base::Unretained(this)));
+  base::RunLoop().RunUntilIdle();
+}
+
 TEST_F(BrowsingDataCookieHelperTest, CannedDomainCookie) {
   const GURL origin("http://www.google.com");
   net::CookieList cookie;
 
   scoped_refptr<CannedBrowsingDataCookieHelper> helper(
       new CannedBrowsingDataCookieHelper(
           testing_profile_->GetRequestContext()));
 
   ASSERT_TRUE(helper->empty());
   helper->AddChangedCookie(origin, origin, "A=1", net::CookieOptions());
@@ skipping 204 matching lines @@
   //   "A=1;
   //   "A=3; Domain=www.google.com"
   // Add a domain cookie and check if it increases the cookie count.
   helper->AddChangedCookie(frame2_url, frame1_url,
                            cookie_pair4 + "; Domain=" + cookie_domain,
                            net::CookieOptions());
   EXPECT_EQ(5U, helper->GetCookieCount());
 }
 
 }  // namespace