Merge pull request #4176 from tschaub/remove-isdefandnotnull

Remove use of goog.isDefAndNotNull().

src/ol/control/fullscreencontrol.js

@@ -114,11 +114,9 @@ ol.control.FullScreen.prototype.handleFullScreen_ = function() {
     goog.dom.fullscreen.exitFullScreen();
   } else {
     var target = map.getTarget();
-    goog.asserts.assert(goog.isDefAndNotNull(target),
-        'target should be defined');
+    goog.asserts.assert(target, 'target should be defined');
     var element = goog.dom.getElement(target);
-    goog.asserts.assert(goog.isDefAndNotNull(element),
-        'element should be defined');
+    goog.asserts.assert(element, 'element should be defined');
     if (this.keys_) {
       goog.dom.fullscreen.requestFullScreenWithKeys(element);
     } else {

src/ol/control/overviewmapcontrol.js

@@ -395,7 +395,7 @@ ol.control.OverviewMap.prototype.updateBox_ = function() {
   overlay.setPosition(rotateBottomLeft);
 
   // set box size calculated from map extent size and overview map resolution
-  if (goog.isDefAndNotNull(box)) {
+  if (box) {
     var boxWidth = Math.abs((bottomLeft[0] - topRight[0]) / ovresolution);
     var boxHeight = Math.abs((topRight[1] - bottomLeft[1]) / ovresolution);
     goog.style.setBorderBoxSize(box, new goog.math.Size(

src/ol/control/zoomslidercontrol.js

@@ -182,7 +182,7 @@ ol.control.ZoomSlider.render = function(mapEvent) {
   if (goog.isNull(mapEvent.frameState)) {
     return;
   }
-  goog.asserts.assert(goog.isDefAndNotNull(mapEvent.frameState.viewState),
+  goog.asserts.assert(mapEvent.frameState.viewState,
       'viewState should be defined');
   if (!this.sliderInitialized_) {
     this.initSlider_();