Rename setAlwaysAcceptCookies to setBlockThirdPartyCookies

third_party/WebKit/LayoutTests/http/tests/cookies/resources/testharness-helpers.js

 if (window.testRunner) {
-    testRunner.setAlwaysAcceptCookies(true);
+    testRunner.setBlockThirdPartyCookies(false);
 }
 
 var ORIGINAL_HOST  = "example.test";
 var TEST_ROOT = "not-example.test";
 var TEST_HOST = "cookies." + TEST_ROOT;
 var TEST_SUB  = "subdomain." + TEST_HOST;
 
 var STRICT_DOM = "strict_from_dom";
 var LAX_DOM = "lax_from_dom";
 var NORMAL_DOM = "normal_from_dom";
 
 // Clear the three well-known cookies.
 function clearKnownCookies() {
     var cookies = [ STRICT_DOM, LAX_DOM, NORMAL_DOM ];
     cookies.forEach(c => { document.cookie = c + "=0; expires=Thu, 01 Jan 1970 00:00:01 GMT; path=/"; });
 }