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/LauncherAppWidgetProviderInfo.java b/src/com/android/launcher3/LauncherAppWidgetProviderInfo.java
index 228c07e..56cce78 100644
--- a/src/com/android/launcher3/LauncherAppWidgetProviderInfo.java
+++ b/src/com/android/launcher3/LauncherAppWidgetProviderInfo.java
@@ -7,10 +7,12 @@
 import android.content.pm.PackageManager;
 import android.graphics.Point;
 import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
 import android.os.Parcel;
 import android.os.UserHandle;
 
-import com.android.launcher3.icons.ComponentWithLabel;
+import com.android.launcher3.icons.ComponentWithLabelAndIcon;
+import com.android.launcher3.icons.IconCache;
 
 /**
  * This class is a thin wrapper around the framework AppWidgetProviderInfo class. This class affords
@@ -19,7 +21,7 @@
  * as opposed to a widget instance, and so should not be confused with {@link LauncherAppWidgetInfo}
  */
 public class LauncherAppWidgetProviderInfo extends AppWidgetProviderInfo
-        implements ComponentWithLabel {
+        implements ComponentWithLabelAndIcon {
 
     public static final String CLS_CUSTOM_WIDGET_PREFIX = "#custom-widget-";
 
@@ -111,4 +113,9 @@
     public final UserHandle getUser() {
         return getProfile();
     }
+
+    @Override
+    public Drawable getFullResIcon(IconCache cache) {
+        return cache.getFullResIcon(provider.getPackageName(), icon);
+    }
 }