[Sync] Move //sync to //components/sync.

sync/protocol/get_updates_caller_info.proto

-// 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.
-
-syntax = "proto2";
-
-option optimize_for = LITE_RUNTIME;
-option retain_unknown_fields = true;
-
-package sync_pb;
-
-message GetUpdatesCallerInfo {
-  // This message was deprecated in M28.  The preferred represenation of this
-  // information is now the GetUpdatesOrigin enum, which is defined in
-  // sync_enums.proto.
-  enum GetUpdatesSource {
-    UNKNOWN = 0;  // The source was not set by the caller.
-    FIRST_UPDATE = 1;  // First request after browser restart.  Not to
-                       // be confused with "NEW_CLIENT".
-    LOCAL = 2;  // The source of the update was a local change.
-    NOTIFICATION = 3;  // The source of the update was a p2p notification.
-    PERIODIC = 4;  // The source of the update was periodic polling.
-    SYNC_CYCLE_CONTINUATION = 5;  // The source of the update was a
-                                  // continuation of a previous sync cycle.
-                                  // No longer sent as of M24.
-
-    // This value is deprecated and was never used in production.
-    // CLEAR_PRIVATE_DATA = 6;
-
-    NEWLY_SUPPORTED_DATATYPE = 7;   // The client is in configuration mode
-                                    // because it's syncing all datatypes, and
-                                    // support for a new datatype was recently
-                                    // released via a software auto-update.
-    MIGRATION = 8;         // The client is in configuration mode because a
-                           // MIGRATION_DONE error previously returned by the
-                           // server necessitated resynchronization.
-    NEW_CLIENT = 9;        // The client is in configuration mode because the
-                           // user enabled sync for the first time.  Not to be
-                           // confused with FIRST_UPDATE.
-    RECONFIGURATION = 10;  // The client is in configuration mode because the
-                           // user opted to sync a different set of datatypes.
-    DATATYPE_REFRESH = 11;    // A datatype has requested a refresh. This is
-                              // typically used when datatype's have custom
-                              // sync UI, e.g. sessions.
-    RETRY = 13;  // A follow-up GU to pick up updates missed by previous GU.
-    PROGRAMMATIC = 14;     // The client is programmatically enabling/disabling
-                           // a type, typically for error handling purposes.
-  }
-
-  required GetUpdatesSource source = 1;
-
-  // True only if notifications were enabled for this GetUpdateMessage.
-  optional bool notifications_enabled = 2;
-};
-