Various icon cache fixes

> Multiple instances of LauncherIcon created when
    LauncherIcons refers IconCache which in turn creates new LauncherIcons
> Widget icons are never cached as they were using low res icons
> Shortcut drag icons are not loaded synchronously
    when using PinItemRequest flow
> Wrong lastUpdatedTime is used in iconCache for shortcuts
> IconUpdateHandler does not ignore managedUser promise icons

Change-Id: Ie7eed68a30fad11d1861b6c70c380953a15ae1cf
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index 04a7ecd..efe85c7 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -37,7 +37,6 @@
 
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.IconCache;
-import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.model.AddWorkspaceItemsTask;
 import com.android.launcher3.model.AllAppsList;
@@ -573,9 +572,7 @@
     public void updateAndBindWorkspaceItem(WorkspaceItemInfo si, ShortcutInfo info) {
         updateAndBindWorkspaceItem(() -> {
             si.updateFromDeepShortcutInfo(info, mApp.getContext());
-            LauncherIcons li = LauncherIcons.obtain(mApp.getContext());
-            si.bitmap = li.createShortcutIcon(info);
-            li.recycle();
+            mApp.getIconCache().getShortcutIcon(si, info);
             return si;
         });
     }