Disable NaCl browser_tests for GN builds.

chrome/browser/extensions/lazy_background_page_apitest.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 "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "base/scoped_observer.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
@@ skipping 296 matching lines @@
       host->render_view_host(), "abortRequest()", &result));
   EXPECT_TRUE(result);
   page_complete.Wait();
 
   // Lazy Background Page has been shut down.
   EXPECT_FALSE(pm->GetBackgroundHostForExtension(last_loaded_extension_id()));
 }
 
 // Tests that the lazy background page stays alive while a NaCl module exists in
 // its DOM.
-#if !defined(DISABLE_NACL)
+#if !defined(DISABLE_NACL) && !defined(DISABLE_NACL_BROWSERTESTS)
 IN_PROC_BROWSER_TEST_F(LazyBackgroundPageApiTest, NaCl) {
   {
     base::FilePath extdir;
     ASSERT_TRUE(PathService::Get(chrome::DIR_GEN_TEST_DATA, &extdir));
     extdir = extdir.AppendASCII("ppapi/tests/extensions/load_unload/newlib");
     LazyBackgroundObserver page_complete;
     ASSERT_TRUE(LoadExtension(extdir));
     page_complete.Wait();
   }
 
@@ skipping 295 matching lines @@
 
 // Tests that the lazy background page will be unloaded if the onSuspend event
 // handler calls an API function such as chrome.storage.local.set().
 // See: http://crbug.com/296834
 IN_PROC_BROWSER_TEST_F(LazyBackgroundPageApiTest, OnSuspendUseStorageApi) {
   EXPECT_TRUE(LoadExtensionAndWait("on_suspend"));
 }
 
 // TODO: background page with timer.
 // TODO: background page that interacts with popup.