Revert of arc: Implement silent OptIn mode for managed Arc.

chrome/browser/chromeos/arc/arc_android_management_checker.h

Index: chrome/browser/chromeos/arc/arc_android_management_checker.h
diff --git a/chrome/browser/chromeos/arc/arc_android_management_checker.h b/chrome/browser/chromeos/arc/arc_android_management_checker.h
index 70dd884b2aca095e74297a96308b052703c9899c..3407476862478d197d603de189d21db0c28907e6 100644
--- a/chrome/browser/chromeos/arc/arc_android_management_checker.h
+++ b/chrome/browser/chromeos/arc/arc_android_management_checker.h
@@ -9,20 +9,18 @@
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/timer/timer.h"
 #include "chrome/browser/chromeos/policy/android_management_client.h"
 #include "google_apis/gaia/oauth2_token_service.h"
 
+class ArcAndroidManagementCheckerDelegate;
 class ProfileOAuth2TokenService;
-
-namespace arc {
-
-class ArcAndroidManagementCheckerDelegate;
 
 class ArcAndroidManagementChecker : public OAuth2TokenService::Observer {
  public:
   ArcAndroidManagementChecker(ArcAndroidManagementCheckerDelegate* delegate,
                               ProfileOAuth2TokenService* token_service,
-                              const std::string& account_id,
+                              const std::string account_id,
                               bool background_mode);
   ~ArcAndroidManagementChecker() override;
 
@@ -40,6 +38,7 @@
   void DispatchResult(policy::AndroidManagementClient::Result result);
   void OnAndroidManagementChecked(
       policy::AndroidManagementClient::Result result);
+  void OnRefreshTokenTimeout();
 
   // Unowned pointers.
   ArcAndroidManagementCheckerDelegate* const delegate_;
@@ -54,6 +53,8 @@
   // Keeps current retry time for background mode.
   int retry_time_ms_;
 
+  base::OneShotTimer refresh_token_timeout_;
+
   policy::AndroidManagementClient android_management_client_;
 
   base::WeakPtrFactory<ArcAndroidManagementChecker> weak_ptr_factory_;
@@ -61,6 +62,4 @@
   DISALLOW_COPY_AND_ASSIGN(ArcAndroidManagementChecker);
 };
 
-}  // namespace arc
-
 #endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_ANDROID_MANAGEMENT_CHECKER_H_