Introduce lock screen app context to extension features

chrome/renderer/extensions/chrome_extensions_renderer_client.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 "chrome/renderer/extensions/chrome_extensions_renderer_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 176 matching lines @@
   if (!current_context || !current_context->extension())
     return false;
 
   // See http://crbug.com/117446 for the subtlety of this check.
   switch (current_context->context_type()) {
     case extensions::Feature::UNSPECIFIED_CONTEXT:
     case extensions::Feature::WEB_PAGE_CONTEXT:
     case extensions::Feature::UNBLESSED_EXTENSION_CONTEXT:
     case extensions::Feature::WEBUI_CONTEXT:
     case extensions::Feature::SERVICE_WORKER_CONTEXT:
+    case extensions::Feature::LOCK_SCREEN_EXTENSION_CONTEXT:
       return false;
     case extensions::Feature::BLESSED_EXTENSION_CONTEXT:
     case extensions::Feature::CONTENT_SCRIPT_CONTEXT:
       return true;
     case extensions::Feature::BLESSED_WEB_PAGE_CONTEXT:
       return !current_context->web_frame()->Parent();
     default:
       NOTREACHED();
       return false;
   }
@@ skipping 98 matching lines @@
 
 void ChromeExtensionsRendererClient::RunScriptsAtDocumentEnd(
     content::RenderFrame* render_frame) {
   extension_dispatcher_->RunScriptsAtDocumentEnd(render_frame);
 }
 
 void ChromeExtensionsRendererClient::RunScriptsAtDocumentIdle(
     content::RenderFrame* render_frame) {
   extension_dispatcher_->RunScriptsAtDocumentIdle(render_frame);
 }