Fixed ExtraInfoSpec flags for webRequest.onAuthRequired

chrome/test/data/extensions/api_test/webrequest/test_complex.html

 <script src="framework.js">
 </script>
 <script>
 // Constants as functions, not to be called until after runTests.
 function getURLAuthRequired() {
   return getServerURL('auth-basic');
 }
 function getURLHttpXHR() {
   return getServerURL('files/extensions/api_test/webrequest/xhr/a.html');
 }
@@ skipping 209 matching lines @@
             url: getURLAuthRequired(),
           }
         },
         { label: "onAuthRequired",
           event: "onAuthRequired",
           details: {
             url: getURLAuthRequired(),
             isProxy: false,
             scheme: "basic",
             realm: "testrealm",
-            challenger: {host: testServer, port: testServerPort}
+            challenger: {host: testServer, port: testServerPort},
+            responseHeadersExist: true
           }
         },
         { label: "onResponseStarted",
           event: "onResponseStarted",
           details: {
             url: getURLAuthRequired(),
             fromCache: false,
             statusCode: 401,
-            ip: "127.0.0.1"
+            ip: "127.0.0.1",
+            responseHeadersExist: true
           }
         },
         { label: "onCompleted",
           event: "onCompleted",
           details: {
             url: getURLAuthRequired(),
             fromCache: false,
             statusCode: 401,
-            ip: "127.0.0.1"
+            ip: "127.0.0.1",
+            responseHeadersExist: true
           }
         },
       ],
       [  // event order
         ["onBeforeRequest", "onBeforeSendHeaders", "onSendHeaders",
          "onAuthRequired", "onResponseStarted", "onCompleted"]
       ],
-      {}, []);
+      {}, ["responseHeaders"]);
     navigateAndWait(getURLAuthRequired());
   },
 
   // Navigates to a page to generates an XHR.
   function xhrLoad() {
     expect(
       [  // events
         { label: "onBeforeRequest-1",
           event: "onBeforeRequest",
           details: {
@@ skipping 78 matching lines @@
       [  // event order
         ["onBeforeRequest-1", "onBeforeSendHeaders-1", "onSendHeaders-1",
          "onResponseStarted-1", "onCompleted-1",
          "onBeforeRequest-2", "onBeforeSendHeaders-2", "onSendHeaders-2",
          "onResponseStarted-2", "onCompleted-2"] ],
       {}, []);
     navigateAndWait(getURLHttpXHR());
   },
 ]);
 </script>