Support uninstalling ARC app from Chrome launcher

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 9db76e3615559721d79a8035fb6b2e1a05fa7a9a..937eb75aa37905771583dd7df1fea0098ee76f5b 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
@@ -50,13 +50,15 @@ class ArcAppListPrefs : public KeyedService,
             const std::string& package_name,
             const std::string& activity,
             const base::Time& last_launch_time,
-            bool ready);
+            bool ready,
+            bool uninstallable);
 
     std::string name;
     std::string package_name;
     std::string activity;
     base::Time last_launch_time;
     bool ready;
+    bool uninstallable;
   };
 
   class Observer {
@@ -140,6 +142,7 @@ class ArcAppListPrefs : public KeyedService,
                  const mojo::String& activity,
                  arc::ScaleFactor scale_factor,
                  mojo::Array<uint8_t> icon_png_data) override;
+  void OnUninstallAppResponse(const mojo::String& error_message) override;
 
   void AddApp(const arc::AppInfo& app);
   void RemoveApp(const std::string& app_id);