Don't clear size compat mode on fold/unfold.

With ag/14036667, the displays are turned off during fold and unfold transitions. While screen is off, ActivityRecord#mVisibleRequested is set to false and mCompatDisplatInsets is cleared in onConfigurationChanged > restartProcessIfVisible > clearSizeCompatMode. As a result, unresizable activities don't enter size compat mode after fold/unfold as they should. To address this checking that visibleIgnoringKeyguard is set to false before clearing mCompatDisplayInsets.

Fix: 187338605
Test: atest SizeCompatMode
Change-Id: I75ea5bba106d04c849e6b7ab446f77fcd8928981

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

@@ -7483,7 +7483,10 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
         if (mVisibleRequested) {
             // It may toggle the UI for user to restart the size compatibility mode activity.
             display.handleActivitySizeCompatModeIfNeeded(this);
-        } else if (mCompatDisplayInsets != null) {
+        } else if (mCompatDisplayInsets != null && !visibleIgnoringKeyguard) {
+            // visibleIgnoringKeyguard is checked to avoid clearing mCompatDisplayInsets during
+            // displays change. Displays are turned off during the change so mVisibleRequested
+            // can be false.
             // The override changes can only be obtained from display, because we don't have the
             // difference of full configuration in each hierarchy.
             final int displayChanges = display.getCurrentOverrideConfigurationChanges();

services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java

@@ -521,6 +521,7 @@ public class SizeCompatTests extends WindowTestsBase {
 
         mActivity.setState(STOPPED, "testSizeCompatMode");
         mActivity.mVisibleRequested = false;
+        mActivity.visibleIgnoringKeyguard = false;
         mActivity.app.setReportedProcState(ActivityManager.PROCESS_STATE_CACHED_ACTIVITY);
 
         // Simulate the display changes orientation.