Distinguish G Suite accounts from regular gmail/googlemail accounts

components/safe_browsing/csd.proto

Index: components/safe_browsing/csd.proto
diff --git a/components/safe_browsing/csd.proto b/components/safe_browsing/csd.proto
index 0e3a5aa1da36e6b56f6e6defd9598dd431015f15..8bd4119d63578c4d9fcbd22729166d492c349809 100644
--- a/components/safe_browsing/csd.proto
+++ b/components/safe_browsing/csd.proto
@@ -216,6 +216,22 @@ message LoginReputationClientRequest {
 
     // Whether the reused password is used for Chrome signin.
     optional bool is_chrome_signin_password = 3;
+
+    // Sync account type. Only set if |is_chrome_signin_password| is true.
+    enum SyncAccountType {
+      // Not a sign-in user.
+      NOT_SIGNED_IN = 0;

[Nathan Parker, 2017/06/27 23:06:30]

Any idea when/why this could happen? Would we expect to see any users in this
bucket?

[Jialiu Lin, 2017/06/28 15:40:30]

It covers the case such as we cannot get the sync account info from profile, or
somehow between password reuse detection and sending out ping, user state
changes from sign-in to sign-out. (Given a slow network, and an async whitelist
checking, this in theory could happen).

+
+      // User signed in with @gmail.com, or @googlemail.com account.
+      GMAIL = 1;
+
+      // User signed in with @google.com account.
+      GOOGLE = 2;
+
+      // User signed in with a G Suite account.
+      GSUITE = 3;
+    }
+    optional SyncAccountType sync_account_type = 4;
   }
 
   optional PasswordReuseEvent password_reuse_event = 4;