Fix a bug where redirect chain gets lost on process swap.

chrome/test/data/extensions/api_test/webrequest/framework.js

 // 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.
 
 var getURL = chrome.extension.getURL;
 var deepEq = chrome.test.checkDeepEq;
 var expectedEventData;
 var capturedEventData;
 var expectedEventOrder;
 var tabId;
@@ skipping 197 matching lines @@
       if (found) {
         chrome.test.fail("Received event twice '" + name + "':" +
             JSON.stringify(details));
       } else {
         found = true;
         label = exp.label;
       }
     }
   });
   if (!found) {
+    console.log("Expected events: " +
+        JSON.stringify(expectedEventData, null, 2));
     chrome.test.fail("Received unexpected event '" + name + "':" +
-        JSON.stringify(details));
+        JSON.stringify(details, null, 2));
   }
 
   capturedEventData.push({label: label, event: name, details: details});
   checkExpectations();
 
   if (callback) {
     window.setTimeout(callback, 0, retval);
   } else {
     return retval;
   }
@@ skipping 58 matching lines @@
   helper(chrome.webRequest.onBeforeRequest);
   helper(chrome.webRequest.onBeforeSendHeaders);
   helper(chrome.webRequest.onAuthRequired);
   helper(chrome.webRequest.onSendHeaders);
   helper(chrome.webRequest.onHeadersReceived);
   helper(chrome.webRequest.onResponseStarted);
   helper(chrome.webRequest.onBeforeRedirect);
   helper(chrome.webRequest.onCompleted);
   helper(chrome.webRequest.onErrorOccurred);
 }