Revert of Revert of DevTools: Introduce module initializers

Source/devtools/front_end/Runtime.js

 /*
  * Copyright (C) 2014 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
@@ skipping 98 matching lines @@
     this._cachedTypeClasses = {};
 
     /**
      * @type {!Object.<string, !Runtime.ModuleDescriptor>}
      */
     this._descriptorsMap = {};
     for (var i = 0; i < descriptors.length; ++i)
         this._descriptorsMap[descriptors[i]["name"]] = descriptors[i];
 }
 
+/**
+ * @param {string} moduleName
+ * @return {!Worker}
+ */
+Runtime.startWorker = function(moduleName)
+{
+    return new Worker(moduleName + "/_module.js");
+}
+
 Runtime.prototype = {
     /**
      * @param {!Array.<string>} configuration
      */
     registerModules: function(configuration)
     {
         for (var i = 0; i < configuration.length; ++i)
             this.registerModule(configuration[i]);
     },
 
@@ skipping 298 matching lines @@
             Error.stackTraceLimit = 50;
             console.assert(false, "Module " + this._name + " is loaded from itself: " + new Error().stack);
             Error.stackTraceLimit = oldStackTraceLimit;
             return;
         }
 
         this._isLoading = true;
         var dependencies = this._descriptor.dependencies;
         for (var i = 0; dependencies && i < dependencies.length; ++i)
             this._manager.loadModule(dependencies[i]);
-        var scripts = this._descriptor.scripts;
-        for (var i = 0; scripts && i < scripts.length; ++i)
-            loadScript(this._name + "/" + scripts[i]);
+        if (this._descriptor.scripts)
+            loadScript(this._name + "/_module.js");
         this._isLoading = false;
         this._loaded = true;
     }
 }
 
 /**
  * @constructor
  * @param {!Runtime.Module} module
  * @param {!Runtime.ExtensionDescriptor} descriptor
  */
@@ skipping 65 matching lines @@
             this._instance = new constructorFunction();
         }
         return this._instance;
     }
 }
 
 /**
  * @type {!Runtime}
  */
 var runtime;