DevTools: Fix frontend compilation errors uncovered by r184188

Source/devtools/front_end/timeline/TracingTimelineModel.js

Index: Source/devtools/front_end/timeline/TracingTimelineModel.js
diff --git a/Source/devtools/front_end/timeline/TracingTimelineModel.js b/Source/devtools/front_end/timeline/TracingTimelineModel.js
index 461ab7d5c5ba332ecfc2f0bff67c2b01baa068a1..0b1aec3ad08cef9a38df3ef94c56db4db12bf11a 100644
--- a/Source/devtools/front_end/timeline/TracingTimelineModel.js
+++ b/Source/devtools/front_end/timeline/TracingTimelineModel.js
@@ -1217,6 +1217,10 @@ WebInspector.InvalidationTracker.prototype = {
         var frameId = paintEvent.args["data"]["frame"];
         this._invalidationEvents.forEach(recordInvalidationForPaint.bind(this));
 
+        /**
+         * @param {!WebInspector.InvalidationTrackingEvent} invalidation
+         * @this {WebInspector.InvalidationTracker}
+         */
         function recordInvalidationForPaint(invalidation)
         {
             if (invalidation.paintId === effectivePaintId && invalidation.frameId === frameId)
@@ -1246,6 +1250,7 @@ WebInspector.InvalidationTracker.prototype = {
 
     _initializePerFrameState: function()
     {
+        /** @type {!Array.<!WebInspector.InvalidationTrackingEvent>} */
         this._invalidationEvents = [];
         this._lastStyleRecalcEventIndex = 0;
         this._lastPaintWithLayer = undefined;