Introduce lock screen app context to extension features

extensions/renderer/script_context.cc

 // Copyright 2014 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/script_context.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_split.h"
@@ skipping 40 matching lines @@
     case Feature::CONTENT_SCRIPT_CONTEXT:
       return "CONTENT_SCRIPT";
     case Feature::WEB_PAGE_CONTEXT:
       return "WEB_PAGE";
     case Feature::BLESSED_WEB_PAGE_CONTEXT:
       return "BLESSED_WEB_PAGE";
     case Feature::WEBUI_CONTEXT:
       return "WEBUI";
     case Feature::SERVICE_WORKER_CONTEXT:
       return "SERVICE_WORKER";
+    case Feature::LOCK_SCREEN_EXTENSION_CONTEXT:
+      return "LOCK_SCREEN_EXTENSION";
   }
   NOTREACHED();
   return std::string();
 }
 
 static std::string ToStringOrDefault(
     const v8::Local<v8::String>& v8_string,
     const std::string& dflt) {
   if (v8_string.IsEmpty())
     return dflt;
@@ skipping 455 matching lines @@
     v8::Local<v8::Value> argv[]) {
   return context_->CallFunction(function, argc, argv);
 }
 
 gin::ContextHolder* ScriptContext::Runner::GetContextHolder() {
   v8::HandleScope handle_scope(context_->isolate());
   return gin::PerContextData::From(context_->v8_context())->context_holder();
 }
 
 }  // namespace extensions