DevTools: WI.Throttler goes promisified.

Source/devtools/front_end/elements/StylesSidebarPane.js

Index: Source/devtools/front_end/elements/StylesSidebarPane.js
diff --git a/Source/devtools/front_end/elements/StylesSidebarPane.js b/Source/devtools/front_end/elements/StylesSidebarPane.js
index dffd02758e605be13bb481f15cc28e4c7bc238da..6ba5681be5c60907561eefc1d2e4149ee8cb997b 100644
--- a/Source/devtools/front_end/elements/StylesSidebarPane.js
+++ b/Source/devtools/front_end/elements/StylesSidebarPane.js
@@ -313,16 +313,14 @@ WebInspector.StylesSidebarPane.prototype = {
 
     /**
      * @override
-     * @param {!WebInspector.Throttler.FinishCallback} finishedCallback
+     * @return {!Promise.<?>}
      */
-    doUpdate: function(finishedCallback)
+    doUpdate: function()
     {
         this._discardElementUnderMouse();
 
-        this.fetchMatchedCascade()
+        return this.fetchMatchedCascade()
             .then(this._innerRebuildUpdate.bind(this))
-            .then(finishedCallback)
-            .catch(/** @type {function()} */(finishedCallback));
     },
 
     _resetCache: function()
@@ -2804,14 +2802,12 @@ WebInspector.StylePropertyTreeElement.prototype = {
     /**
      * @param {string} styleText
      * @param {boolean} majorChange
-     * @param {!WebInspector.Throttler.FinishCallback} finishedCallback
+     * @return {!Promise.<undefined>}
      */
-    _innerApplyStyleText: function(styleText, majorChange, finishedCallback)
+    _innerApplyStyleText: function(styleText, majorChange)
     {
-        if (!this.treeOutline) {
-            finishedCallback();
-            return;
-        }
+        if (!this.treeOutline)
+            return Promise.resolve();
 
         styleText = styleText.replace(/\s/g, " ").trim(); // Replace &nbsp; with whitespace.
         if (!styleText.length && majorChange && this._newProperty && !this._propertyHasBeenEditedIncrementally) {
@@ -2819,7 +2815,7 @@ WebInspector.StylePropertyTreeElement.prototype = {
             var section = this.section();
             this.parent.removeChild(this);
             section.afterUpdate();
-            return;
+            return Promise.resolve();
         }
 
         var currentNode = this._parentPane.node();
@@ -2838,7 +2834,6 @@ WebInspector.StylePropertyTreeElement.prototype = {
                     // It did not apply, cancel editing.
                     this._revertStyleUponEditingCanceled();
                 }
-                finishedCallback();
                 this.styleTextAppliedForTest();
                 return;
             }
@@ -2851,7 +2846,6 @@ WebInspector.StylePropertyTreeElement.prototype = {
             if (!this._parentPane._isEditingStyle && currentNode === this.node())
                 this._updatePane();
 
-            finishedCallback();
             this.styleTextAppliedForTest();
         }
 
@@ -2860,9 +2854,8 @@ WebInspector.StylePropertyTreeElement.prototype = {
         if (styleText.length && !/;\s*$/.test(styleText))
             styleText += ";";
         var overwriteProperty = !this._newProperty || this._propertyHasBeenEditedIncrementally;
-        this.property.setText(styleText, majorChange, overwriteProperty)
-            .then(callback.bind(this))
-            .catch(/** @type {function()} */(finishedCallback));
+        return this.property.setText(styleText, majorChange, overwriteProperty)
+            .then(callback.bind(this));
     },
 
     /**