Do not rewrite about urls to chrome:// for cetain renderer-initated loads

ios/chrome/browser/web/window_open_by_dom_egtest.mm

 // Copyright 2016 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.
 
 #import <EarlGrey/EarlGrey.h>
 
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 185 matching lines @@
   // Ensure that the starting tab hasn't navigated.
   chrome_test_util::CloseCurrentTab();
   const GURL URL = HttpServer::MakeUrl(kTestURL);
   [[EarlGrey selectElementWithMatcher:OmniboxText(URL.GetContent())]
       assertWithMatcher:grey_notNil()];
 }
 
 // Tests opening a child window using the following link
 // <a href="data:text/html,<script>window.location='about:newtab';</script>"
 //    target="_blank">
-// TODO(crbug.com/687863): Enable this test.
-- (void)DISABLED_testWindowOpenWithAboutNewTabScript {
+- (void)testWindowOpenWithAboutNewTabScript {
   TapWebViewElementWithId("webScenarioWindowOpenWithAboutNewTabScript");
   AssertMainTabCount(2);
   [[EarlGrey selectElementWithMatcher:OmniboxText("about:newtab")]
       assertWithMatcher:grey_notNil()];
 }
 
 // Tests that closing the current window using DOM fails.
 - (void)testCloseWindowNotOpenByDOM {
   TapWebViewElementWithId("webScenarioWindowClose");
   AssertMainTabCount(1);
 }
 
 // Tests that popup blocking works when a popup is injected into a window before
 // its initial load is committed.
 - (void)testBlockPopupInjectedIntoOpenedWindow {
   chrome_test_util::SetContentSettingsBlockPopups(CONTENT_SETTING_BLOCK);
   TapWebViewElementWithId("webScenarioOpenWindowAndInjectPopup");
   NSString* infobarText = GetBlockedPopupInfobarText(1);
   [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(infobarText)]
       assertWithMatcher:grey_notNil()];
   AssertMainTabCount(2);
 }
 
 @end