Add an action for server to send down rollback command.

sync/engine/syncer_proto_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/engine/syncer_proto_util.h"
 
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 #include "google_apis/google_api_keys.h"
 #include "sync/engine/net/server_connection_manager.h"
@@ skipping 104 matching lines @@
     case sync_pb::SyncEnums::THROTTLED:
       return THROTTLED;
     case sync_pb::SyncEnums::CLEAR_PENDING:
       return CLEAR_PENDING;
     case sync_pb::SyncEnums::TRANSIENT_ERROR:
       return TRANSIENT_ERROR;
     case sync_pb::SyncEnums::MIGRATION_DONE:
       return MIGRATION_DONE;
     case sync_pb::SyncEnums::DISABLED_BY_ADMIN:
       return DISABLED_BY_ADMIN;
+    case sync_pb::SyncEnums::USER_ROLLBACK:
+      return USER_ROLLBACK;
     case sync_pb::SyncEnums::UNKNOWN:
       return UNKNOWN_ERROR;
     case sync_pb::SyncEnums::USER_NOT_ACTIVATED:
     case sync_pb::SyncEnums::AUTH_INVALID:
     case sync_pb::SyncEnums::ACCESS_DENIED:
       return INVALID_CREDENTIAL;
     default:
       NOTREACHED();
       return UNKNOWN_ERROR;
   }
@@ skipping 189 matching lines @@
 // TODO(lipalani) : Rename these function names as per the CR for issue 7740067.
 SyncProtocolError ConvertLegacyErrorCodeToNewError(
     const sync_pb::SyncEnums::ErrorType& error_type) {
   SyncProtocolError error;
   error.error_type = ConvertSyncProtocolErrorTypePBToLocalType(error_type);
   if (error_type == sync_pb::SyncEnums::CLEAR_PENDING ||
       error_type == sync_pb::SyncEnums::NOT_MY_BIRTHDAY) {
     error.action = DISABLE_SYNC_ON_CLIENT;
   } else if (error_type == sync_pb::SyncEnums::DISABLED_BY_ADMIN) {
     error.action = STOP_SYNC_FOR_DISABLED_ACCOUNT;
-  }  // There is no other action we can compute for legacy server.
+  } else if (error_type == sync_pb::SyncEnums::USER_ROLLBACK) {
+    error.action = DISABLE_SYNC_AND_ROLLBACK;
+  } // There is no other action we can compute for legacy server.
   return error;
 }
 
 }  // namespace
 
 // static
 SyncerError SyncerProtoUtil::PostClientToServerMessage(
     ClientToServerMessage* msg,
     ClientToServerResponse* response,
     SyncSession* session) {
@@ skipping 115 matching lines @@
           << "MIGRATION_DONE but no types specified.";
       session->delegate()->OnReceivedMigrationRequest(
           GetTypesToMigrate(*response));
       return SERVER_RETURN_MIGRATION_DONE;
     case CLEAR_PENDING:
       return SERVER_RETURN_CLEAR_PENDING;
     case NOT_MY_BIRTHDAY:
       return SERVER_RETURN_NOT_MY_BIRTHDAY;
     case DISABLED_BY_ADMIN:
       return SERVER_RETURN_DISABLED_BY_ADMIN;
+    case USER_ROLLBACK:
+      return SERVER_RETURN_USER_ROLLBACK;
     default:
       NOTREACHED();
       return UNSET;
   }
 }
 
 // static
 bool SyncerProtoUtil::ShouldMaintainPosition(
     const sync_pb::SyncEntity& sync_entity) {
   // Maintain positions for bookmarks that are not server-defined top-level
@@ skipping 89 matching lines @@
 std::string SyncerProtoUtil::ClientToServerResponseDebugString(
     const ClientToServerResponse& response) {
   // Add more handlers as needed.
   std::string output;
   if (response.has_get_updates())
     output.append(GetUpdatesResponseString(response.get_updates()));
   return output;
 }
 
 }  // namespace syncer