Make third-party cookie blocking strict by default

chrome/browser/about_flags.cc

 // Copyright (c) 2011 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/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 212 matching lines @@
     SINGLE_VALUE_TYPE(switches::kNoPings)
   },
   {
     "experimental-location-features",  // FLAGS:RECORD_UMA
     IDS_FLAGS_EXPERIMENTAL_LOCATION_FEATURES_NAME,
     IDS_FLAGS_EXPERIMENTAL_LOCATION_FEATURES_DESCRIPTION,
     kOsMac | kOsWin | kOsLinux,  // Currently does nothing on CrOS.
     SINGLE_VALUE_TYPE(switches::kExperimentalLocationFeatures)
   },
   {
-    "block-reading-third-party-cookies",
-    IDS_FLAGS_BLOCK_ALL_THIRD_PARTY_COOKIES_NAME,
-    IDS_FLAGS_BLOCK_ALL_THIRD_PARTY_COOKIES_DESCRIPTION,
-    kOsAll,
-    SINGLE_VALUE_TYPE(switches::kBlockReadingThirdPartyCookies)
-  },
-  {
     "disable-interactive-form-validation",
     IDS_FLAGS_DISABLE_INTERACTIVE_FORM_VALIDATION_NAME,
     IDS_FLAGS_DISABLE_INTERACTIVE_FORM_VALIDATION_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kDisableInteractiveFormValidation)
   },
   {
     "focus-existing-tab-on-open",  // FLAGS:RECORD_UMA
     IDS_FLAGS_FOCUS_EXISTING_TAB_ON_OPEN_NAME,
     IDS_FLAGS_FOCUS_EXISTING_TAB_ON_OPEN_DESCRIPTION,
@@ skipping 628 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags