Make sure updateSurfaceSize gets applied after changing config

Otherwise we'll apply the old size.

Test: Rotate screen, make sure size is correct.
Test: go/wm-smoke
Change-Id: Ic9474952801241a16c344175104ec2b5d45e7ec8

services/core/java/com/android/server/wm/TaskStack.java

@@ -716,10 +716,11 @@ public class TaskStack extends WindowContainer<Task> implements
     @Override
     public void onConfigurationChanged(Configuration newParentConfig) {
         final int prevWindowingMode = getWindowingMode();
+        super.onConfigurationChanged(newParentConfig);
+
         // Only need to update surface size here since the super method will handle updating
         // surface position.
         updateSurfaceSize(getPendingTransaction());
-        super.onConfigurationChanged(newParentConfig);
         final int windowingMode = getWindowingMode();
 
         if (mDisplayContent == null || prevWindowingMode == windowingMode) {