Introduce lock screen app context to extension features

extensions/renderer/js_extension_bindings_system.cc

 // 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.
 
 #include "extensions/renderer/js_extension_bindings_system.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_split.h"
 #include "content/public/child/v8_value_converter.h"
 #include "content/public/common/content_switches.h"
@@ skipping 177 matching lines @@
         RegisterBinding("runtime", "runtime", context);
       break;
 
     case Feature::SERVICE_WORKER_CONTEXT:
       DCHECK(ExtensionsClient::Get()
                  ->ExtensionAPIEnabledInExtensionServiceWorkers());
     // Intentional fallthrough.
     case Feature::BLESSED_EXTENSION_CONTEXT:
     case Feature::UNBLESSED_EXTENSION_CONTEXT:
     case Feature::CONTENT_SCRIPT_CONTEXT:
+    case Feature::LOCK_SCREEN_EXTENSION_CONTEXT:
     case Feature::WEBUI_CONTEXT: {
       // Extension context; iterate through all the APIs and bind the available
       // ones.
       const FeatureProvider* api_feature_provider =
           FeatureProvider::GetAPIFeatures();
       for (const auto& map_entry : api_feature_provider->GetAllFeatures()) {
         // Internal APIs are included via require(api_name) from internal code
         // rather than chrome[api_name].
         if (map_entry.second->IsInternal())
           continue;
@@ skipping 102 matching lines @@
         std::unique_ptr<NativeHandler>(
             new BindingGeneratingNativeHandler(context, api_name, "binding")));
     module_system->SetNativeLazyField(bind_object, bind_name, api_bind_name,
                                       "binding");
   } else {
     module_system->SetLazyField(bind_object, bind_name, api_name, "binding");
   }
 }
 
 }  // namespace extensions