DevTools: introduce WI.UISourceCode.requestMetadata()

third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js

Index: third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
diff --git a/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js b/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
index c6ddae8cd4a6b72ff2bfc1e65d87e64c14382963..3942369a391dd3a8caafedf3443b2cbb1603ca51 100644
--- a/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
+++ b/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
@@ -75,6 +75,14 @@ WebInspector.UISourceCode.Events = {
 
 WebInspector.UISourceCode.prototype = {
     /**
+     * @return {!Promise<?WebInspector.UISourceCodeMetadata>}
+     */
+    requestMetadata: function()
+    {
+        return this._project.requestMetadata(this);
+    },
+
+    /**
      * @return {string}
      */
     name: function()
@@ -963,3 +971,14 @@ WebInspector.UISourceCode.LineMarker.prototype = {
         return this._data;
     }
 }
+
+/**
+ * @constructor
+ * @param {?Date} modificationTime
+ * @param {?number} contentSize
+ */
+WebInspector.UISourceCodeMetadata = function(modificationTime, contentSize)
+{
+    this.modificationTime = modificationTime;
+    this.contentSize = contentSize;
+}