Remove unused and expensive tileLoadedEvent.

Source/Scene/Globe.js

@@ -275,18 +275,6 @@ define([
                 return this._surface.tileProvider.imageryLayersUpdatedEvent;
             }
         },
-        /**
-         * Gets an event that's raised when a surface tile is loaded and ready to be rendered.
-         *
-         * @memberof Globe.prototype
-         * @type {Event}
-         * @readonly
-         */
-        tileLoadedEvent : {
-            get : function() {
-                return this._surface.tileProvider.tileLoadedEvent;
-            }
-        },
         /**
          * Returns <code>true</code> when the tile load queue is empty, <code>false</code> otherwise.  When the load queue is empty,
          * all terrain and imagery for the current view have been loaded.

Source/Scene/GlobeSurfaceTileProvider.js

@@ -171,7 +171,6 @@ define([
         this._imageryLayers.layerRemoved.addEventListener(GlobeSurfaceTileProvider.prototype._onLayerRemoved, this);
         this._imageryLayers.layerMoved.addEventListener(GlobeSurfaceTileProvider.prototype._onLayerMoved, this);
         this._imageryLayers.layerShownOrHidden.addEventListener(GlobeSurfaceTileProvider.prototype._onLayerShownOrHidden, this);
-        this._tileLoadedEvent = new Event();
         this._imageryLayersUpdatedEvent = new Event();
 
         this._layerOrderChanged = false;
@@ -288,17 +287,6 @@ define([
             }
         },
 
-        /**
-         * Gets an event that is raised when an globe surface tile is loaded and ready to be rendered.
-         * @memberof GlobeSurfaceTileProvider.prototype
-         * @type {Event}
-         */
-        tileLoadedEvent : {
-            get : function() {
-                return this._tileLoadedEvent;
-            }
-        },
-
         /**
          * Gets an event that is raised when an imagery layer is added, shown, hidden, moved, or removed.
          * @memberof GlobeSurfaceTileProvider.prototype
@@ -554,13 +542,6 @@ define([
             return;
         }
         GlobeSurfaceTile.processStateMachine(tile, frameState, this._terrainProvider, this._imageryLayers, this._vertexArraysToDestroy);
-        var tileLoadedEvent = this._tileLoadedEvent;
-
-        // TODO: creating a new function for every loaded tile every frame?!
-        tile._loadedCallbacks['tileLoadedEvent'] = function (tile) {
-            tileLoadedEvent.raiseEvent();
-            return true;
-        };
     };
 
     var boundingSphereScratch = new BoundingSphere();

Source/Scene/QuadtreeTile.js

@@ -72,7 +72,7 @@ define([
 
         this._customData = [];
         this._frameUpdated = undefined;
-        this._lastSelectionResult = TileSelectionResult.CULLED;
+        this._lastSelectionResult = TileSelectionResult.NONE;
         this._lastSelectionResultFrame = undefined;
         this._loadedCallbacks = {};
 

Specs/DataSources/EntityClusterSpec.js

@@ -50,7 +50,6 @@ defineSuite([
                     tilesWaitingForChildren : 0
                 }
             },
-            tileLoadedEvent : new Event(),
             terrainProviderChanged : new Event(),
             imageryLayersUpdatedEvent : new Event(),
             beginFrame : function() {},

Specs/DataSources/PointVisualizerSpec.js

@@ -51,7 +51,6 @@ defineSuite([
         scene.globe = {
             ellipsoid : Ellipsoid.WGS84,
             _surface : {},
-            tileLoadedEvent : new Event(),
             imageryLayersUpdatedEvent : new Event(),
             terrainProviderChanged : new Event()
         };

Specs/Scene/ModelSpec.js

@@ -3147,7 +3147,6 @@ defineSuite([
                         tilesWaitingForChildren : 0
                     }
                 },
-                tileLoadedEvent : new Event(),
                 imageryLayersUpdatedEvent : new Event(),
                 destroy : function() {}
             };

Specs/createGlobe.js

@@ -25,7 +25,6 @@ define([
                 return 0.0;
             },
             _surface : {},
-            tileLoadedEvent : new Event(),
             imageryLayersUpdatedEvent : new Event(),
             _terrainProvider : undefined,
             terrainProviderChanged : new Event(),