Introduce lock screen app context to extension features

chrome/browser/extensions/chrome_extensions_browser_client.cc

 // Copyright 2013 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/browser/extensions/chrome_extensions_browser_client.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
@@ skipping 46 matching lines @@
 #include "extensions/browser/mojo/service_registration.h"
 #include "extensions/browser/pref_names.h"
 #include "extensions/browser/url_request_util.h"
 #include "extensions/common/features/feature_channel.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/extensions/updater/chromeos_extension_cache_delegate.h"
 #include "chrome/browser/extensions/updater/extension_cache_impl.h"
 #include "chromeos/chromeos_switches.h"
+#include "components/session_manager/core/session_manager.h"
 #include "components/user_manager/user_manager.h"
 #else
 #include "extensions/browser/updater/null_extension_cache.h"
 #endif
 
 namespace extensions {
 
 ChromeExtensionsBrowserClient::ChromeExtensionsBrowserClient() {
   process_manager_delegate_.reset(new ChromeProcessManagerDelegate);
   api_client_.reset(new ChromeExtensionsAPIClient);
@@ skipping 355 matching lines @@
     return nullptr;
   return navigation_data->GetExtensionNavigationUIData();
 }
 
 KioskDelegate* ChromeExtensionsBrowserClient::GetKioskDelegate() {
   if (!kiosk_delegate_)
     kiosk_delegate_.reset(new ChromeKioskDelegate());
   return kiosk_delegate_.get();
 }
 
+bool ChromeExtensionsBrowserClient::IsLockScreenContext(
+    content::BrowserContext* context) {
+#if defined(OS_CHROMEOS)
+  return chromeos::ProfileHelper::IsSigninProfile(
+             Profile::FromBrowserContext(context)) &&
+         session_manager::SessionManager::Get()->IsSessionStarted();
+#else
+  return false;
+#endif
+}
 }  // namespace extensions