arc: Revamp the ArcBridgeService interface

chrome/browser/ui/app_list/arc/arc_app_list_prefs.h

Index: chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
diff --git a/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h b/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
index 0357525b87da7822cc171b91a65e2700d2efe736..c35274410033bea41740817809c5826c4f820592 100644
--- a/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
+++ b/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
@@ -44,10 +44,12 @@ class PrefRegistrySyncable;
 // information is used to pre-create non-ready app items while ARC bridge
 // service is not ready to provide information about available ARC apps.
 // NOTE: ArcAppListPrefs is only created for the primary user.
-class ArcAppListPrefs : public KeyedService,
-                        public arc::mojom::AppHost,
-                        public arc::ArcBridgeService::Observer,
-                        public arc::ArcAuthService::Observer {
+class ArcAppListPrefs
+    : public KeyedService,
+      public arc::mojom::AppHost,
+      public arc::ArcBridgeService::Observer,
+      public arc::ArcBridgeService::InstanceObserver<arc::mojom::AppInstance>,
+      public arc::ArcAuthService::Observer {
  public:
   struct AppInfo {
     AppInfo(const std::string& name,
@@ -206,9 +208,12 @@ class ArcAppListPrefs : public KeyedService,
   ArcAppListPrefs(const base::FilePath& base_path, PrefService* prefs);
 
   // arc::ArcBridgeService::Observer:
-  void OnStateChanged(arc::ArcBridgeService::State state) override;
-  void OnAppInstanceReady() override;
-  void OnAppInstanceClosed() override;
+  void OnBridgeStopped() override;
+
+  // arc::ArcBridgeService::InstanceObserver<arc::mojom::AppInstance>:
+  void OnInstanceReady(arc::mojom::AppInstance* app_instance,
+                       uint32_t version) override;
+  void OnInstanceClosed(arc::mojom::AppInstance*) override;
 
   // arc::mojom::AppHost:
   void OnAppListRefreshed(mojo::Array<arc::mojom::AppInfoPtr> apps) override;