DevTools: Allow dynamic module registration only in tests

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 114 matching lines @@
     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]);
+            this._registerModule(configuration[i]);
     },
 
     /**
      * @param {string} moduleName
      */
-    registerModule: function(moduleName)
+    _registerModule: function(moduleName)
     {
         if (!this._descriptorsMap[moduleName]) {
             var content = loadResource(moduleName + "/module.json");
             if (!content)
                 throw new Error("Module is not defined: " + moduleName + " " + new Error().stack);
             var module = /** @type {!Runtime.ModuleDescriptor} */ (self.eval("(" + content + ")"));
             module["name"] = moduleName;
             this._descriptorsMap[moduleName] = module;
         }
         var module = new Runtime.Module(this, this._descriptorsMap[moduleName]);
@@ skipping 371 matching lines @@
             this._instance = new constructorFunction();
         }
         return this._instance;
     }
 }
 
 /**
  * @type {!Runtime}
  */
 var runtime;