DevTools: introduce WI.UISourceCode.requestMetadata()

third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.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
@@ skipping 57 matching lines @@
     TitleChanged: Symbol("TitleChanged"),
     SourceMappingChanged: Symbol("SourceMappingChanged"),
     MessageAdded: Symbol("MessageAdded"),
     MessageRemoved: Symbol("MessageRemoved"),
     LineDecorationAdded: Symbol("LineDecorationAdded"),
     LineDecorationRemoved: Symbol("LineDecorationRemoved")
 }
 
 WebInspector.UISourceCode.prototype = {
     /**
+     * @return {!Promise<?WebInspector.UISourceCodeMetadata>}
+     */
+    requestMetadata: function()
+    {
+        return this._project.requestMetadata(this);
+    },
+
+    /**
      * @return {string}
      */
     name: function()
     {
         return this._name;
     },
 
     /**
      * @return {string}
      */
@@ skipping 868 matching lines @@
     },
 
     /**
      * @return {*}
      */
     data: function()
     {
         return this._data;
     }
 }
+
+/**
+ * @constructor
+ * @param {?Date} modificationTime
+ * @param {?number} contentSize
+ */
+WebInspector.UISourceCodeMetadata = function(modificationTime, contentSize)
+{
+    this.modificationTime = modificationTime;
+    this.contentSize = contentSize;
+}