Replace goog.getUid with ol.getUid

src/ol/style/fillstyle.js

@@ -60,7 +60,7 @@ ol.style.Fill.prototype.getChecksum = function() {
         this.color_ instanceof CanvasPattern ||
         this.color_ instanceof CanvasGradient
     ) {
-      this.checksum_ = goog.getUid(this.color_).toString();
+      this.checksum_ = ol.getUid(this.color_).toString();
     } else {
       this.checksum_ = 'f' + (this.color_ ?
           ol.color.asString(this.color_) : '-');

src/ol/style/iconstyle.js

@@ -109,7 +109,7 @@ ol.style.Icon = function(opt_options) {
       'imgSize must be set when image is provided');
 
   if ((src === undefined || src.length === 0) && image) {
-    src = image.src || goog.getUid(image).toString();
+    src = image.src || ol.getUid(image).toString();
   }
   goog.asserts.assert(src !== undefined && src.length > 0,
       'must provide a defined and non-empty src or image');