Show discovery tip for hybrid hotseat

Doc: go/hybrid-hotseat-tips

Issue 157683315: for fully populated hotseat, count returns to home screen and show discovery tip if Tip action was not tapped.
Issue 158301717: Don't use cached items if client has predicted items.

Test: Manual
Change-Id: I4747a1148caa62a6262fb6592d5185bdf216ede6

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

@@ -31,6 +31,7 @@ import android.os.Bundle;
 import android.os.CancellationSignal;
 
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.hybridhotseat.HotseatPredictionController;
 import com.android.launcher3.model.WellbeingModel;
 import com.android.launcher3.popup.SystemShortcut;
 import com.android.launcher3.proxy.ProxyActivityStarter;
@@ -75,6 +76,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
     private final ShelfPeekAnim mShelfPeekAnim = new ShelfPeekAnim(this);
 
     private OverviewActionsView mActionsView;
+    protected HotseatPredictionController mHotseatPredictionController;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -305,6 +307,13 @@ public abstract class BaseQuickstepLauncher extends Launcher
         return mShelfPeekAnim;
     }
 
+    /**
+     * Returns Prediction controller for hybrid hotseat
+     */
+    public HotseatPredictionController getHotseatPredictionController() {
+        return mHotseatPredictionController;
+    }
+
     public void setHintUserWillBeActive() {
         addActivityFlags(ACTIVITY_STATE_USER_WILL_BE_ACTIVE);
     }