DevTools: Fix frontend compilation errors uncovered by r184188

Source/devtools/front_end/timeline/TracingTimelineModel.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @param {!WebInspector.TracingManager} tracingManager
  * @param {!WebInspector.TracingModel} tracingModel
  * @param {!WebInspector.TimelineModel.Filter} recordFilter
  * @extends {WebInspector.TimelineModel}
@@ skipping 1199 matching lines @@
             this._lastPaintWithLayer = paintEvent;
         if (!this._lastPaintWithLayer) {
             console.error("Failed to find the paint container for a paint event.");
             return;
         }
 
         var effectivePaintId = this._lastPaintWithLayer.args["data"]["nodeId"];
         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)
                 this._addInvalidationTrackingEvent(paintEvent, invalidation);
         }
     },
 
     /**
      * @param {!WebInspector.TracingModel.Event} event
      * @param {!WebInspector.InvalidationTrackingEvent} invalidation
      */
     _addInvalidationTrackingEvent: function(event, invalidation)
     {
         if (!event.invalidationTrackingEvents)
             event.invalidationTrackingEvents = [ invalidation ];
         else
             event.invalidationTrackingEvents.push(invalidation);
     },
 
     _startNewFrameIfNeeded: function()
     {
         if (!this._didPaint)
             return;
 
         this._initializePerFrameState();
     },
 
     _initializePerFrameState: function()
     {
+        /** @type {!Array.<!WebInspector.InvalidationTrackingEvent>} */
         this._invalidationEvents = [];
         this._lastStyleRecalcEventIndex = 0;
         this._lastPaintWithLayer = undefined;
         this._didPaint = false;
     }
 }