Set taskbar heights to 0 when taskbar is not present.

Bug: 289769344
Fixes: 289769344
Test: DeviceProfileDumpTest
Change-Id: I53f8a629c8adc12feb1fdf9f5b40b4a680c97b78

src/com/android/launcher3/DeviceProfile.java

@@ -365,7 +365,10 @@ public class DeviceProfile {
         }
 
         isTransientTaskbar = DisplayController.isTransientTaskbar(context);
-        if (isTransientTaskbar) {
+        if (!isTaskbarPresent) {
+            taskbarIconSize = taskbarHeight = stashedTaskbarHeight = taskbarBottomMargin = 0;
+            startAlignTaskbar = false;
+        } else if (isTransientTaskbar) {
             float invTransientIconSizeDp = inv.transientTaskbarIconSize[mTypeIndex];
             taskbarIconSize = pxFromDp(invTransientIconSizeDp, mMetrics);
             taskbarHeight = Math.round((taskbarIconSize * ICON_VISIBLE_AREA_FACTOR)