Print stack traces in child processes when browser tests failed.

chrome/test/data/webui/net_internals/log_util.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.
 
 /**
  * @fileoverview This file contains tests for creating and loading log files.
  * It also tests the stop capturing button, since it both creates and then loads
  * a log dump.
  */
 
@@ skipping 243 matching lines @@
     function() {
   var taskQueue = new NetInternalsTest.TaskQueue(true);
   taskQueue.addTask(new GetNetLogFileContentsAndLoadLogTask(0));
   taskQueue.addFunctionTask(checkViewsAfterNetLogFileLoaded);
   taskQueue.run(true);
 });
 
 // Flaky on Win Debug build - crbug.com/517484
 GEN('#if defined(OS_WIN)');
 GEN('# define MAYBE_netInternalsLogUtilImportNetLogFileTruncated \\');
-GEN('     DISABLED_netInternalsLogUtilImportNetLogFileTruncated');
+GEN('     netInternalsLogUtilImportNetLogFileTruncated');
 GEN('#else');
 GEN('# define MAYBE_netInternalsLogUtilImportNetLogFileTruncated \\');
 GEN('     netInternalsLogUtilImportNetLogFileTruncated');
 GEN('#endif');
 
 /**
  * Same as above, but it truncates the log to simulate the case of a crash when
  * creating a log.
  */
 TEST_F('NetInternalsTest',
@@ skipping 59 matching lines @@
   taskQueue.addFunctionTask(checkPrivacyStripping.bind(null, true));
   taskQueue.addTask(new CreateAndLoadLogTask('Detailed explanation.'));
   taskQueue.addFunctionTask(checkViewsAfterLogLoaded);
   taskQueue.run();
 
   // Simulate clicking the stop button.
   $(CaptureView.STOP_BUTTON_ID).click();
 });
 
 })();  // Anonymous namespace