Print stack traces in child processes when browser tests failed.

chrome/test/data/webui/net_internals/prerender_view.js

 // 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 test fixture.
 GEN_INCLUDE(['net_internals_test.js']);
 
 // Anonymous namespace
 (function() {
 
@@ skipping 166 matching lines @@
     expectEquals(this.url_, prerenderInfo.history[0].url);
     expectEquals(this.finalStatus_, prerenderInfo.history[0].final_status);
 
     this.onTaskDone();
   }
 };
 
 // Flaky on Win Debug build - crbug.com/517484
 GEN('#if defined(OS_WIN)');
 GEN('# define MAYBE_netInternalsPrerenderViewSucceed \\');
-GEN('     DISABLED_netInternalsPrerenderViewSucceed');
+GEN('     netInternalsPrerenderViewSucceed');
 GEN('#else');
 GEN('# define MAYBE_netInternalsPrerenderViewSucceed \\');
 GEN('     netInternalsPrerenderViewSucceed');
 GEN('#endif');
 
 /**
  * Prerender a page and navigate to it, once prerendering starts.
  */
 TEST_F('NetInternalsTest',
        'MAYBE_netInternalsPrerenderViewSucceed', function() {
   var taskQueue = new NetInternalsTest.TaskQueue(true);
   taskQueue.addTask(
       new NetInternalsTest.GetTestServerURLTask('files/title1.html'));
   taskQueue.addTask(new PrerenderTask(true, 'Used'));
   taskQueue.run();
 });
 
 // Flaky on Win Debug build - crbug.com/517484
 GEN('#if defined(OS_WIN)');
 GEN('# define MAYBE_netInternalsPrerenderViewFail \\');
-GEN('     DISABLED_netInternalsPrerenderViewFail');
+GEN('     netInternalsPrerenderViewFail');
 GEN('#else');
 GEN('# define MAYBE_netInternalsPrerenderViewFail \\');
 GEN('     netInternalsPrerenderViewFail');
 GEN('#endif');
 
 /**
  * Prerender a page that is expected to fail.
  */
 TEST_F('NetInternalsTest', 'MAYBE_netInternalsPrerenderViewFail', function() {
   var taskQueue = new NetInternalsTest.TaskQueue(true);
   taskQueue.addTask(
       new NetInternalsTest.GetTestServerURLTask('files/download-test1.lib'));
   taskQueue.addTask(new PrerenderTask(false, 'Download'));
   taskQueue.run();
 });
 
 })();  // Anonymous namespace