Enable device discovery notifications.

chrome_frame/test/net/fake_external_tab.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_frame/test/net/fake_external_tab.h"
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <exdisp.h>
 #include <Winsock2.h>
@@ skipping 505 matching lines @@
       NULL, LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE);
   DCHECK(res_mod);
   _AtlBaseModule.SetResourceInstance(res_mod);
 
   // Point the ResourceBundle at chrome.dll.
   ui::SetResourcesDataDLL(_AtlBaseModule.GetResourceInstance());
 
   ResourceBundle::InitSharedInstanceWithLocale("en-US", NULL);
 
   CommandLine* cmd = CommandLine::ForCurrentProcess();
+  // Disable Device Discovery with switch because this test does not respect
+  // BrowserContextKeyedBaseFactory::ServiceIsNULLWhileTesting.
+  cmd->AppendSwitch(switches::kDisableDeviceDiscoveryNotifications);
   cmd->AppendSwitch(switches::kDisableWebResources);
   cmd->AppendSwitch(switches::kSingleProcess);
 
   base::FilePath local_state_path;
   CHECK(PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path));
   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
       JsonPrefStore::GetTaskRunnerForFile(local_state_path,
                                           BrowserThread::GetBlockingPool());
   browser_process_.reset(new FakeBrowserProcessImpl(local_state_task_runner,
                                                     *cmd));
@@ skipping 456 matching lines @@
   content::InitializeSandboxInfo(&sandbox_info);
   FakeMainDelegate delegate;
   content::ContentMain(
       reinterpret_cast<HINSTANCE>(GetModuleHandle(NULL)),
       &sandbox_info,
       &delegate);
 
   // Note:  In debug builds, we ExitProcess during PostDestroyThreads.
   return g_test_suite->test_result();
 }