Adding support for showing predicted apps as a floating row in all-apps

and overview

Bug: 130053407
Change-Id: Idb93a0ba6cfea8406f75ab86d9e0acde2fc04b3a

src/com/android/launcher3/util/MainThreadInitializedObject.java

@@ -22,6 +22,8 @@ import com.android.launcher3.MainThreadExecutor;
 
 import java.util.concurrent.ExecutionException;
 
+import androidx.annotation.VisibleForTesting;
+
 /**
  * Utility class for defining singletons which are initiated on main thread.
  */
@@ -53,6 +55,11 @@ public class MainThreadInitializedObject<T> {
         return mValue;
     }
 
+    @VisibleForTesting
+    public void initializeForTesting(T value) {
+        mValue = value;
+    }
+
     public interface ObjectProvider<T> {
 
         T get(Context context);