Be able to print items that do window.print(); window.close() (airline tix e.g.)

chrome/browser/ui/webui/javascript2webui.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.
 if (arguments.length < 3) {
   print('usage: ' +
         arguments[0] + ' path-to-testfile.js testfile.js [output.cc]');
   quit(-1);
 }
 var jsFile = arguments[1];
 var jsFileBase = arguments[2];
@@ skipping 14 matching lines @@
 }
 
 var typedeffedCppFixtures = {};
 
 function TEST_F(testFixture, testFunction, testBody) {
   var browsePreload = this[testFixture].prototype.browsePreload;
   var browsePrintPreload = this[testFixture].prototype.browsePrintPreload;
   var testGenPreamble = this[testFixture].prototype.testGenPreamble;
   var testGenPostamble = this[testFixture].prototype.testGenPostamble;
   var typedefCppFixture = this[testFixture].prototype.typedefCppFixture;
+  var doPrint = this[testFixture].prototype.print;
   var isAsync = this[testFixture].prototype.isAsync;
 
   if (typedefCppFixture && !(testFixture in typedeffedCppFixtures)) {
     print('typedef ' + typedefCppFixture + ' ' + testFixture + ';');
     typedeffedCppFixtures[testFixture] = typedefCppFixture;
   }
 
   print('IN_PROC_BROWSER_TEST_F(' + testFixture + ', ' + testFunction + ') {');
   if (testGenPreamble)
     testGenPreamble(testFixture, testFunction);
   print('  AddLibrary(FilePath(FILE_PATH_LITERAL("' + jsFileBase + '")));');
   if (browsePreload) {
     print('  BrowsePreload(GURL("' + browsePreload + '"), "' + testFixture +
           '", "' + testFunction + '");');
     }
   if (browsePrintPreload) {
     print('  BrowsePrintPreload(GURL(WebUITestDataPathToURL(\n' +
           '      FILE_PATH_LITERAL("' + browsePrintPreload + '"))),\n' +
-          '      "' + testFixture + '", "' + testFunction + '");');
+          '      "' + testFixture + '", "' + testFunction + '",\n' +
+          '      ' + doPrint + ');');
   }
   print('  ASSERT_TRUE(RunJavascriptTestF(' + isAsync + ', ' +
         '"' + testFixture + '", ' +
         '"' + testFunction + '"));');
   if (testGenPostamble)
     testGenPostamble(testFixture, testFunction);
   print('}');
   print();
 }
 
 var js = read(jsFile);
 eval(js);