DevTools: extract protocol module

third_party/WebKit/Source/devtools/front_end/externs.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
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 var Gonzales = {};
 var HeapSnapshotWorker = {};
 var Host = {};
 var LayerViewer = {};
 var Layers = {};
 var Main = {};
 var Network = {};
 var Persistence = {};
 var Platform = {};
 var Profiler = {};
+var Protocol = {};
 var Resources = {};
 var Sass = {};
 var Screencast = {};
 var SDK = {};
 var Security = {};
 var Services = {};
 var Settings = {};
 var Shell = {};
 var Snippets = {};
 var SourceFrame = {};
 var Sources = {};
 var Terminal = {};
 var TestRunner = {};
 var TextEditor = {};
 var Timeline = {};
 var TimelineModel = {};
 var ToolboxBootstrap = {};
 var UI = {};
 var UtilitySharedWorker = {};
 var WorkerService = {};
 var Workspace = {};