Add flags for android U sharesheet features.

Usage will be in the IntentResolver package.

Bug: 262578843
Bug: 266983474
Bug: 266982749
Bug: 266983432
Test: Builds
Change-Id: Ie48472609a06899db1005d2a41cac766c1474d2e
diff --git a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
index 47c41fe..75be706 100644
--- a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
+++ b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
@@ -524,10 +524,19 @@
     val QUICK_TAP_FLOW_FRAMEWORK =
         unreleasedFlag(1401, "quick_tap_flow_framework", teamfood = false)
 
-    // 1500 - chooser
+    // 1500 - chooser aka sharesheet
     // TODO(b/254512507): Tracking Bug
     val CHOOSER_UNBUNDLED = unreleasedFlag(1500, "chooser_unbundled", teamfood = true)
 
+    // TODO(b/266983432) Tracking Bug
+    val SHARESHEET_CUSTOM_ACTIONS = unreleasedFlag(1501, "sharesheet_custom_actions")
+
+    // TODO(b/266982749) Tracking Bug
+    val SHARESHEET_RESELECTION_ACTION = unreleasedFlag(1502, "sharesheet_reselection_action")
+
+    // TODO(b/266983474) Tracking Bug
+    val SHARESHEET_IMAGE_AND_TEXT_PREVIEW = unreleasedFlag(1503, "sharesheet_image_text_preview")
+
     // 1600 - accessibility
     @JvmField
     val A11Y_FLOATING_MENU_FLING_SPRING_ANIMATIONS =