Load and draw Recent/Running tasks that aren't in Hotseat

- Re-support GroupTask as a tag on TaskbarView BubbleTextViews
- Can tap to launch (startActivityFromRecents) or drag and drop
- Move divider when enable_recents_in_taskbar is true

Behavior:
- While in Desktop mode, all open tasks show up in TaskbarView,
  either in the Hotseat section or the Running apps section
  past the divider. Each one also has a running line indicator.
- While in Fullscreen mode, up to 2 Recent apps that are not
  part of Hotseat will be added to the right of the divider.

Flag: com.android.launcher3.enable_recents_in_taskbar
Test: TaskbarRecentAppsControllerTest
Bug: 315354060
Change-Id: I2e2870cca434b51f276a701860edb32069109159

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

@@ -33,6 +33,7 @@ import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.LauncherBindableItemsContainer;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.Preconditions;
+import com.android.quickstep.util.GroupTask;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -130,7 +131,7 @@ public class TaskbarModelCallbacks implements
         final int itemCount = mContainer.getChildCount();
         for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) {
             View item = mContainer.getChildAt(itemIdx);
-            if (op.evaluate((ItemInfo) item.getTag(), item)) {
+            if (item.getTag() instanceof ItemInfo itemInfo && op.evaluate(itemInfo, item)) {
                 return;
             }
         }
@@ -201,18 +202,20 @@ public class TaskbarModelCallbacks implements
         if (mDeferUpdatesForSUW) {
             ItemInfo[] finalHotseatItemInfos = hotseatItemInfos;
             mDeferredUpdates = () ->
-                    commitHotseatItemUpdates(finalHotseatItemInfos, runningPackages,
+                    commitHotseatItemUpdates(finalHotseatItemInfos,
+                            recentAppsController.getShownTasks(), runningPackages,
                             minimizedPackages);
         } else {
-            commitHotseatItemUpdates(hotseatItemInfos, runningPackages, minimizedPackages);
+            commitHotseatItemUpdates(hotseatItemInfos,
+                    recentAppsController.getShownTasks(), runningPackages, minimizedPackages);
         }
     }
 
-    private void commitHotseatItemUpdates(ItemInfo[] hotseatItemInfos, Set<String> runningPackages,
-            Set<String> minimizedPackages) {
-        mContainer.updateHotseatItems(hotseatItemInfos);
-        mControllers.taskbarViewController.updateIconViewsRunningStates(runningPackages,
-                minimizedPackages);
+    private void commitHotseatItemUpdates(ItemInfo[] hotseatItemInfos, List<GroupTask> recentTasks,
+            Set<String> runningPackages, Set<String> minimizedPackages) {
+        mContainer.updateHotseatItems(hotseatItemInfos, recentTasks);
+        mControllers.taskbarViewController.updateIconViewsRunningStates(
+                runningPackages, minimizedPackages);
     }
 
     /**