Revert of Revert of DevTools: Introduce module initializers

Source/devtools/front_end/Runtime.js

Index: Source/devtools/front_end/Runtime.js
diff --git a/Source/devtools/front_end/Runtime.js b/Source/devtools/front_end/Runtime.js
index 767552393e2ed7560b68c6aa3c839d0d03923817..364bbd560b9ee49e243a06b0429720969de0c042 100644
--- a/Source/devtools/front_end/Runtime.js
+++ b/Source/devtools/front_end/Runtime.js
@@ -116,6 +116,15 @@
         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
@@ -434,9 +443,8 @@
         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;
     }