Pin apps from prefs on the mash shelf.

mash/shelf/public/interfaces/shelf.mojom

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module mash.shelf.mojom;
 
 import "mash/shelf/public/interfaces/shelf_constants.mojom";
 import "skia/public/interfaces/bitmap.mojom";
 
 // TODO(msw): Add support for multiple displays (with unified and multi-shelf).
 
 // The Shelf controller allows clients (eg. Chrome) to control the mash shelf.
 interface ShelfController {
   AddObserver(associated ShelfObserver observer);
 
   SetAlignment(Alignment alignment);
   SetAutoHideBehavior(AutoHideBehavior auto_hide);
 
   PinItem(ShelfItem item, associated ShelfItemDelegate delegate);
   UnpinItem(string app_id);
+
+  SetItemImage(string app_id, skia.mojom.Bitmap image);
 };
 
 // ShelfObserver is notified on shelf changes; used to persist profile settings.
 interface ShelfObserver {
   OnAlignmentChanged(Alignment alignment);
   OnAutoHideBehaviorChanged(AutoHideBehavior auto_hide);
 };
 
 // ShelfItemDelegate handles command execution and observes shelf item changes.
 interface ShelfItemDelegate {
@@ skipping 29 matching lines @@
 
   // A app title, used for tooltips, etc. (eg. 'Foo Application').
   string app_title;
 
   // An icon image Bitmap, shown on the shelf.
   skia.mojom.Bitmap image;
 
   // Additional context menu items (eg. 'New Incognito Window').
   array<ContextMenuItem>? context_menu_items;
 };