Add missing Closure Library requires

src/ol/renderer/canvas/canvasimagelayerrenderer.js

@@ -1,5 +1,7 @@
 goog.provide('ol.renderer.canvas.ImageLayer');
 
+goog.require('goog.events');
+goog.require('goog.events.EventType');
 goog.require('goog.vec.Mat4');
 goog.require('ol.Image');
 goog.require('ol.ImageState');

src/ol/renderer/canvas/canvasmaprenderer.js

@@ -3,7 +3,9 @@
 goog.provide('ol.renderer.canvas.Map');
 
 goog.require('goog.array');
+goog.require('goog.asserts');
 goog.require('goog.dom');
+goog.require('goog.dom.TagName');
 goog.require('goog.style');
 goog.require('goog.vec.Mat4');
 goog.require('ol.Size');

src/ol/renderer/canvas/canvastilelayerrenderer.js

@@ -4,7 +4,10 @@
 goog.provide('ol.renderer.canvas.TileLayer');
 
 goog.require('goog.array');
+goog.require('goog.asserts');
 goog.require('goog.dom');
+goog.require('goog.dom.TagName');
+goog.require('goog.object');
 goog.require('goog.vec.Mat4');
 goog.require('ol.Extent');
 goog.require('ol.Size');

src/ol/renderer/canvas/canvasvectorlayerrenderer.js

@@ -1,5 +1,10 @@
 goog.provide('ol.renderer.canvas.VectorLayer');
 
+goog.require('goog.dom');
+goog.require('goog.dom.TagName');
+goog.require('goog.events');
+goog.require('goog.events.EventType');
+goog.require('goog.object');
 goog.require('goog.vec.Mat4');
 goog.require('ol.Extent');
 goog.require('ol.Size');

src/ol/renderer/canvas/canvasvectorrenderer.js

@@ -2,6 +2,10 @@ goog.provide('ol.renderer.canvas.VectorRenderer');
 
 
 goog.require('goog.asserts');
+goog.require('goog.dom');
+goog.require('goog.dom.TagName');
+goog.require('goog.events');
+goog.require('goog.events.EventType');
 goog.require('goog.vec.Mat4');
 goog.require('ol.Feature');
 goog.require('ol.Pixel');