Enable live tile in 3 button mode

- Previously we rely on whether launcher is resumed as a signal to see what "toggle" means. This no longer works since launcher is not resumed in Overview. Instead, we need to check the live tile signals.
- Use screenshot doesn't propagate after setting a new current task. So followed the logic around mRunningTaskIconScaledDown to work it out.
- Get rid of NavigationModeFeatureFlag, pending on 3rd party launcher change ag/14409355

Fixes: 185934639
Test: (1) Toggle overview from home screen and toggle back to fullscreen. (2) Toggle overview from app and keep toggling.

Change-Id: Iffaea18afb2179b5bb7dadda49e56efefa5658bc
Merged-In: Iffaea18afb2179b5bb7dadda49e56efefa5658bc

quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java

@@ -20,10 +20,10 @@ import static com.android.launcher3.AbstractFloatingView.TYPE_HIDE_BACK_BUTTON;
 import static com.android.launcher3.LauncherState.FLAG_HIDE_BACK_BUTTON;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.NO_OFFSET;
+import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 import static com.android.launcher3.model.data.ItemInfo.NO_MATCHING_ID;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.quickstep.SysUINavigationMode.Mode.TWO_BUTTONS;
-import static com.android.quickstep.util.NavigationModeFeatureFlag.LIVE_TILE;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_HOME_KEY;
 
 import android.animation.AnimatorSet;
@@ -181,7 +181,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
     @Override
     protected void onScreenOff() {
         super.onScreenOff();
-        if (LIVE_TILE.get()) {
+        if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             RecentsView recentsView = getOverviewPanel();
             recentsView.finishRecentsAnimation(true /* toRecents */, null);
         }