DevTools: WI.Throttler goes promisified.

Source/devtools/front_end/elements/ComputedStyleWidget.js

Index: Source/devtools/front_end/elements/ComputedStyleWidget.js
diff --git a/Source/devtools/front_end/elements/ComputedStyleWidget.js b/Source/devtools/front_end/elements/ComputedStyleWidget.js
index a7b22b5a652a361f83e31a42f5a2cb69722fcbe2..f56fa0a0ca156f63c1c18b422f028e0d59a597af 100644
--- a/Source/devtools/front_end/elements/ComputedStyleWidget.js
+++ b/Source/devtools/front_end/elements/ComputedStyleWidget.js
@@ -108,17 +108,16 @@ WebInspector.ComputedStyleWidget.prototype = {
 
     /**
      * @override
-     * @param {!WebInspector.Throttler.FinishCallback} finishedCallback
+     * @return {!Promise.<?>}
      */
-    doUpdate: function(finishedCallback)
+    doUpdate: function()
     {
         var promises = [
             this._sharedModel.fetchComputedStyle(),
             this._stylesSidebarPane.fetchMatchedCascade()
         ];
-        Promise.all(promises)
-            .spread(this._innerRebuildUpdate.bind(this))
-            .then(finishedCallback);
+        return Promise.all(promises)
+            .spread(this._innerRebuildUpdate.bind(this));
     },
 
     /**