[DevTools] Auto completion for proxy uses proxy target object

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

Index: third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js b/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
index 27c6654ac05900f7b7272db5b86f7dce987913c5..9b35e0e03aa181ab40d50fc250de41938eb7e68e 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
@@ -526,9 +526,53 @@ WebInspector.ExecutionContext.prototype = {
             }
 
             /**
+             * @param {!WebInspector.RemoteObject} object
+             * @return {!Promise<?WebInspector.RemoteObject>}
+             */
+            function extractTarget(object)
+            {
+                if (object.type !== "object" || object.subtype !== "proxy")
+                    return Promise.resolve(/** @type {?WebInspector.RemoteObject} */(object));
+                var callback;
+                var promise = new Promise(fullfill => callback = fullfill);
+                object.getOwnProperties(extractTargetFromProperties);

[lushnikov, 2016/05/05 01:06:03]

return object.getOwnPropertiesPromise()
   .then(findTarget)
   .then(extractTarget);

[kozy, 2016/05/05 01:35:22]

Done.

+                return promise;
+
+                /**
+                 * @param {?Array<!WebInspector.RemoteObjectProperty>} properties
+                 * @param {?Array.<!WebInspector.RemoteObjectProperty>} internalProperties
+                 */
+                function extractTargetFromProperties(properties, internalProperties)
+                {
+                    internalProperties = internalProperties || [];

[lushnikov, 2016/05/05 01:06:04]

var target = internalProperties.find(property => property.name ===
"[[Target]]");
return target || null;

[kozy, 2016/05/05 01:35:22]

Done.

+                    for (var property of internalProperties) {
+                        if (property.name === "[[Target]]") {
+                            extractTarget(property.value).then(callback);
+                            return;
+                        }
+                    }
+                    callback(null);
+                }
+            }
+
+            /**
+             * @param {?WebInspector.RemoteObject} object
+             * @return {!Promise<?Object>}
+             */
+            function completionsForObject(object)
+            {
+                if (!object)
+                    return Promise.resolve(/** @type {?Object} */(null));
+                var callback;
+                var promise = new Promise(fullfill => callback = fullfill);
+                object.callFunctionJSON(getCompletions, [WebInspector.RemoteObject.toCallArgument(object.subtype)], callback);
+                return promise;
+            }
+
+            /**
              * @param {string=} type
              * @suppressReceiverCheck
-             * @this {WebInspector.ExecutionContext}
+             * @this {*}
              */
             function getCompletions(type)
             {
@@ -547,7 +591,7 @@ WebInspector.ExecutionContext.prototype = {
                     for (var o = object; o; o = o.__proto__) {
                         if (type === "array" && o === object && ArrayBuffer.isView(o) && o.length > 9999)
                             continue;
-                        var names = Object.getOwnPropertyNames(o);
+                        var names = Object.getOwnPropertyNames(/** @type{!Object} */(o));
                         var isArray = Array.isArray(o);
                         for (var i = 0; i < names.length; ++i) {
                             // Skip array elements indexes.
@@ -561,8 +605,8 @@ WebInspector.ExecutionContext.prototype = {
                 return resultSet;
             }
 
-            if (result.type === "object" || result.type === "function")
-                result.callFunctionJSON(getCompletions, [WebInspector.RemoteObject.toCallArgument(result.subtype)], receivedPropertyNames.bind(this));
+            if (result.type === "object")
+                extractTarget(result).then(completionsForObject).then(receivedPropertyNames.bind(this));
             else if (result.type === "string" || result.type === "number" || result.type === "boolean")
                 this.evaluate("(" + getCompletions + ")(\"" + result.type + "\")", "completion", false, true, true, false, false, receivedPropertyNamesFromEval.bind(this));
         }
@@ -576,12 +620,13 @@ WebInspector.ExecutionContext.prototype = {
         function receivedPropertyNamesFromEval(notRelevant, wasThrown, result)
         {
             if (result && !wasThrown)
-                receivedPropertyNames.call(this, result.value);
+                receivedPropertyNames.call(this, /** @type {!Object} */(result.value));
             else
                 completionsReadyCallback([]);
         }
 
         /**
+         * @param {?Object} propertyNames
          * @this {WebInspector.ExecutionContext}
          */
         function receivedPropertyNames(propertyNames)