[Devtools] isTrusted in CustomEvents shown twice in console

third_party/WebKit/LayoutTests/inspector/console/console-dir-expected.txt

 CONSOLE MESSAGE: line 9: test1,test2
 CONSOLE MESSAGE: line 10: [object NodeList]
 CONSOLE MESSAGE: line 11: [object XPathResult]
 CONSOLE MESSAGE: line 21: [object Object]
 CONSOLE MESSAGE: line 24: function () {}
 CONSOLE MESSAGE: line 28: [object Object]
 CONSOLE MESSAGE: line 31: [object Object]
 CONSOLE MESSAGE: line 32: [object Object]
 CONSOLE MESSAGE: line 34: function get __proto__() { [native code] }
 CONSOLE MESSAGE: line 39: [object Uint8Array]
+CONSOLE MESSAGE: line 44: [object Event]
 Tests that console logging dumps proper messages.
 
 console-dir.html:4 Array[2]
     0: "test1"
     1: "test2"
     length: 2
     __proto__: Array[0]
 console-dir.html:5 NodeList[1]
     0: html
     length: 1
@@ skipping 35 matching lines @@
     name: "get __proto__"
     __proto__: ()
     <function scope>
         No Scopes
 console-dir.html:34 Uint8Array[400000000]
     [0 … 99999999]
     [100000000 … 199999999]
     [200000000 … 299999999]
     [300000000 … 399999999]
     __proto__: TypedArray
+console-dir.html:39 Event
+    bubbles: false
+    cancelBubble: false
+    cancelable: false
+    currentTarget: null
+    defaultPrevented: false
+    eventPhase: 0
+    isTrusted: false
+    path: Array[0]
+    relatedTargetScoped: false
+    returnValue: true
+    scoped: false
+    srcElement: null
+    target: null
+    timeStamp: 0
+    type: ""
+    __proto__: Event