Set FLAG_RESUMED = false when expanding PiP

This allows us to play the icon alignment animation immediately, rather
than waiting for the expand to finish and launcher to be paused.

Test: Open Maps in PiP on home screen, expand it and watch taskbar
Fixes: 239506421
Change-Id: I5c04f778c4c39c2895db0a1ea1fca4d48d1f3093

quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java

@@ -353,6 +353,13 @@ public class LauncherTaskbarUIController extends TaskbarUIController {
                 .get();
     }
 
+    @Override
+    public void onExpandPip() {
+        super.onExpandPip();
+        mTaskbarLauncherStateController.updateStateForFlag(FLAG_RESUMED, false);
+        mTaskbarLauncherStateController.applyState();
+    }
+
     @Override
     public void dumpLogs(String prefix, PrintWriter pw) {
         super.dumpLogs(prefix, pw);