Recategorize ARC auth sign in errors.

components/arc/common/auth.mojom

Index: components/arc/common/auth.mojom
diff --git a/components/arc/common/auth.mojom b/components/arc/common/auth.mojom
index 503cb3615f08997216ca32f62a90c683828612db..e4dca7328b3f094cad454de185815dfb3d311f8d 100644
--- a/components/arc/common/auth.mojom
+++ b/components/arc/common/auth.mojom
@@ -5,13 +5,59 @@
 module arc.mojom;
 
 // These values describe failure reason of sign-in.
+[Extensible]
 enum ArcSignInFailureReason {
+  // Negative values are reserved for internal use.
+  // The values are shuffled to keep the backward compatibility.
+  // Next value: 15.
   UNKNOWN_ERROR = 0,
-  NETWORK_ERROR = 1,
-  SERVICE_UNAVAILABLE = 2,
-  BAD_AUTHENTICATION = 3,
-  GMS_CORE_NOT_AVAILABLE = 4,
-  CLOUD_PROVISION_FLOW_FAIL = 5,
+
+  // Mojo errors:
+  // MOJO_VERSION_MISMATCH: is sent when an API is not supported
+  //   due to Host/Instance version mismatch.
+  // MOJO_CALL_TIMEOUT: is sent when a Mojo invocation is started
+  //   but not completed with time out.
+  MOJO_VERSION_MISMATCH = 6,
+  MOJO_CALL_TIMEOUT = 7,
+
+  // Device check-in errors:
+  // DEVICE_CHECK_IN_FAILED: is sent when "check-in" procedure is completed
+  //   but is actually failed.
+  // DEVICE_CHECK_IN_TIMEOUT: is sent when "check-in" procedure started
+  //   but is not completed.
+  // DEVICE_CHECK_IN_INTERNAL_ERROR: is sent when "check-in" procedure is
+  //   started, but some unexpected error situation happens so that it could
+  //   not completed.
+  DEVICE_CHECK_IN_FAILED = 4,
+  DEVICE_CHECK_IN_TIMEOUT = 8,
+  DEVICE_CHECK_IN_INTERNAL_ERROR = 9,
+
+  // GMS errors:
+  // GMS_NETWORK_ERROR: is sent when GMS sign-in procedure is started, but
+  //   it reports NETWORK_ERROR.
+  // GMS_SERVICE_UNAVAILABLE: is sent when GMS sign-in procedure is started
+  //   but it reports SERVICE_UNAVAILABLE. Note that this is not generic
+  //   service unavailable error code.
+  // GMS_BAD_AUTHENTICATION: is sent when GMS sign-in procedure is started
+  //   but it reports BAD_AUTHENTICATION.
+  // GMS_SIGN_IN_FAILED: is sent when GMS sign in procedure is started but
+  //   it reports an error other than above NETWORK_ERROR, SERVICE_UNAVAILABLE
+  //   or BAD_AUTHENTICATION. In general, we do not expect this kind of cases.
+  // GMS_SIGN_IN_TIMEOUT: is sent when GMS sign in procedure is started but
+  //   not returned.
+  // GMS_SIGN_IN_INTERNAL_ERROR: is sent when GMS sign in procedure is started
+  //   but could not completed.
+  GMS_NETWORK_ERROR = 1,
+  GMS_SERVICE_UNAVAILABLE = 2,
+  GMS_BAD_AUTHENTICATION = 3,
+  GMS_SIGN_IN_FAILED = 10,
+  GMS_SIGN_IN_TIMEOUT = 11,
+  GMS_SIGN_IN_INTERNAL_ERROR = 12,
+
+  // Cloud provisioning errors.
+  CLOUD_PROVISION_FLOW_FAILED = 5,
+  CLOUD_PROVISION_FLOW_TIMEOUT = 13,
+  CLOUD_PROVISION_FLOW_INTERNAL_ERROR = 14,
 };
 
 interface AuthHost {