arc: Skip GMS Sign-In in case Android is already signed-in.

chrome/browser/chromeos/arc/arc_optin_uma.h

Index: chrome/browser/chromeos/arc/arc_optin_uma.h
diff --git a/chrome/browser/chromeos/arc/arc_optin_uma.h b/chrome/browser/chromeos/arc/arc_optin_uma.h
index 3b5844f058e4efa9a4723e6087d9f5fe3c3fe038..c0aee1e5e7de25c242d00cd86b0fa72abd636979 100644
--- a/chrome/browser/chromeos/arc/arc_optin_uma.h
+++ b/chrome/browser/chromeos/arc/arc_optin_uma.h
@@ -7,6 +7,8 @@
 
 #include <ostream>
 
+#include "components/arc/common/auth.mojom.h"
+
 namespace base {
 class TimeDelta;
 }
@@ -129,6 +131,7 @@ void UpdateProvisioningTiming(const base::TimeDelta& elapsed_time,
 void UpdateSilentAuthCodeUMA(OptInSilentAuthCode state);
 void UpdateAuthTiming(const char* histogram_name, base::TimeDelta elapsed_time);
 void UpdateAuthCheckinAttempts(int32_t num_attempts);
+void UpdateAuthAccountCheckStatus(mojom::AccountCheckStatus status);
 
 // Outputs the stringified |result| to |os|. This is only for logging purposes.
 std::ostream& operator<<(std::ostream& os, const ProvisioningResult& result);