PreferencesManager

ash/common/shelf/shelf_controller.h

Index: ash/common/shelf/shelf_controller.h
diff --git a/ash/common/shelf/shelf_controller.h b/ash/common/shelf/shelf_controller.h
index b058d4ffbf1b95880e98c55685a3c0f2635077d8..2f91e8547af0e7f477b0254b047baf53c30bb08b 100644
--- a/ash/common/shelf/shelf_controller.h
+++ b/ash/common/shelf/shelf_controller.h
@@ -12,6 +12,7 @@
 #include "ash/common/shelf/shelf_model.h"
 #include "ash/public/cpp/shelf_types.h"
 #include "ash/public/interfaces/shelf.mojom.h"
+#include "components/prefs/pref_store.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "mojo/public/cpp/bindings/interface_ptr_set.h"
 
@@ -21,7 +22,8 @@ class WmShelf;
 
 // Ash's implementation of the mojom::ShelfController interface. Chrome connects
 // to this interface to observe and manage the per-display ash shelf instances.
-class ShelfController : public mojom::ShelfController {
+class ShelfController : public mojom::ShelfController,
+                        public PrefStore::Observer {
  public:
   ShelfController();
   ~ShelfController() override;
@@ -54,6 +56,10 @@ class ShelfController : public mojom::ShelfController {
   void UnpinItem(const std::string& app_id) override;
   void SetItemImage(const std::string& app_id, const SkBitmap& image) override;
 
+  // PrefStore::Observer:
+  void OnPrefValueChanged(const std::string& key) override;
+  void OnInitializationCompleted(bool succeeded) override;
+
  private:
   // The shelf model shared by all shelf instances.
   ShelfModel model_;