Enabled pressing TAB to cycle through the Omnibox results.

chrome/test/base/in_process_browser_test.cc

 // 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 "chrome/test/base/in_process_browser_test.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/stack_trace.h"
 #include "base/file_path.h"
@@ skipping 229 matching lines @@
   return incognito;
 }
 
 Browser* InProcessBrowserTest::CreateBrowserForPopup(Profile* profile) {
   Browser* browser = Browser::CreateForType(Browser::TYPE_POPUP, profile);
   AddBlankTabAndShow(browser);
   return browser;
 }
 
 void InProcessBrowserTest::AddBlankTabAndShow(Browser* browser) {
+  OnBeforeShowBrowser(browser);
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_LOAD_STOP,
        content::NotificationService::AllSources());
   browser->AddSelectedTabWithURL(
       GURL(chrome::kAboutBlankURL), content::PAGE_TRANSITION_START_PAGE);
   observer.Wait();
 
 #if defined(USE_AURA)
   // Disable animations on aura, otherwise any code that gets the bounds may get
   // the wrong thing.
@@ skipping 75 matching lines @@
   if (BrowserList::size() == 0)
     return;
 
   // Invoke CloseAllBrowsersAndMayExit on a running message loop.
   // CloseAllBrowsersAndMayExit exits the message loop after everything has been
   // shut down properly.
   MessageLoopForUI::current()->PostTask(FROM_HERE,
                                         base::Bind(&BrowserList::AttemptExit));
   ui_test_utils::RunMessageLoop();
 }