DevTools: refactor Common.Renderer for DOM nodes

third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js b/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
index b6d4378f881608d8dfd771da4ddf8d60ced25743..3ff7d632d11f6ed66743308e2c96bc550b25ead0 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
@@ -1847,13 +1847,15 @@ SDK.DOMModel = class extends SDK.SDKModel {
 
   /**
    * @param {!SDK.RemoteObject} object
-   * @param {function(?SDK.DOMNode)} callback
+   * @return {!Promise<?SDK.DOMNode>}
    */
-  pushObjectAsNodeToFrontend(object, callback) {
-    if (object.isNode())
-      this.pushNodeToFrontend(/** @type {string} */ (object.objectId), callback);
-    else
-      callback(null);
+  pushObjectAsNodeToFrontend(object) {
+    return new Promise(fulfill => {
+      if (object.isNode())
+        this.pushNodeToFrontend(/** @type {string} */ (object.objectId), fulfill);
+      else
+        fulfill(null);
+    });
   }
 
   /**