Run RemoveArcData after a user has opted out

components/arc/arc_service_manager.h

Index: components/arc/arc_service_manager.h
diff --git a/components/arc/arc_service_manager.h b/components/arc/arc_service_manager.h
index 383ed4722d12e6018639c3ab9be72cdd729076d0..17ec020e7a5d931a5ed1f93921e8ab6092d2b3f5 100644
--- a/components/arc/arc_service_manager.h
+++ b/components/arc/arc_service_manager.h
@@ -6,6 +6,7 @@
 #define COMPONENTS_ARC_ARC_SERVICE_MANAGER_H_
 
 #include <memory>
+#include <string>
 #include <vector>
 
 #include "base/macros.h"
@@ -13,12 +14,14 @@
 #include "base/task_runner.h"
 #include "base/threading/thread_checker.h"
 #include "components/arc/intent_helper/activity_icon_loader.h"
+#include "components/prefs/pref_member.h"
 #include "components/signin/core/account_id/account_id.h"
 
 namespace arc {
 
 class ArcBridgeService;
 class ArcService;
+class ArcUserDataService;
 
 // Manages creation and destruction of services that communicate with the ARC
 // instance via the ArcBridgeService.
@@ -40,7 +43,12 @@ class ArcServiceManager {
   static ArcServiceManager* Get();
 
   // Called when the main profile is initialized after user logs in.
-  void OnPrimaryUserProfilePrepared(const AccountId& account_id);
+  void OnPrimaryUserProfilePrepared(
+      const AccountId& account_id,
+      std::unique_ptr<BooleanPrefMember> arc_enabled_pref);
+
+  // Has the user enabled ARC in their preferences?
+  bool IsArcEnabled() const;
 
   // Called once the windowing system (ash) has been started.
   void OnAshStarted();
@@ -67,11 +75,15 @@ class ArcServiceManager {
   std::unique_ptr<ArcBridgeService> arc_bridge_service_;
   std::vector<std::unique_ptr<ArcService>> services_;
   scoped_refptr<ActivityIconLoader> icon_loader_;
+  std::unique_ptr<ArcUserDataService> arc_user_data_service_;
 
   // True once the window manager service got added, barring adding any more
   // of those since OnAshStarted() might be called multiple times.
   bool on_ash_started_called_ = false;
 
+  // User preference indicating whether or not ARC has been enabled.
+  std::unique_ptr<BooleanPrefMember> arc_enabled_pref_;
+
   DISALLOW_COPY_AND_ASSIGN(ArcServiceManager);
 };