sync: Refactor per-datatype throttling

sync/internal_api/public/engine/sync_status.h

Index: sync/internal_api/public/engine/sync_status.h
diff --git a/sync/internal_api/public/engine/sync_status.h b/sync/internal_api/public/engine/sync_status.h
new file mode 100644
index 0000000000000000000000000000000000000000..1c9ba1a46c94109649065d0fd3469414de1e02ea
--- /dev/null
+++ b/sync/internal_api/public/engine/sync_status.h
@@ -0,0 +1,94 @@
+// 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.
+
+#ifndef SYNC_INTERNAL_API_PUBLIC_ENGINE_STATUS_SUMMARY_H_
+#define SYNC_INTERNAL_API_PUBLIC_ENGINE_STATUS_SUMMARY_H_
+
+#include <string>
+
+#include "sync/internal_api/public/syncable/model_type.h"
+#include "sync/protocol/sync_protocol_error.h"
+
+namespace sync_api {
+
+// Status encapsulates detailed state about the internals of the SyncManager.
+//
+// This struct is closely tied to the AllStatus object which uses instances of
+// it to track and report on the sync engine's internal state, and the functions
+// in sync_ui_util.cc which convert the contents of this struct into a
+// DictionaryValue used to populate the about:sync summary tab.
+struct SyncStatus {
+  SyncStatus();
+  ~SyncStatus();
+
+  bool notifications_enabled;  // True only if subscribed for notifications.
+
+  // Notifications counters updated by the actions in synapi.
+  int notifications_received;
+
+  browser_sync::SyncProtocolError sync_protocol_error;
+
+  // Number of encryption conflicts counted during most recent sync cycle.
+  int encryption_conflicts;
+
+  // Number of hierarchy conflicts counted during most recent sync cycle.
+  int hierarchy_conflicts;
+
+  // Number of simple conflicts counted during most recent sync cycle.
+  int simple_conflicts;
+
+  // Number of items the server refused to commit due to conflict during most
+  // recent sync cycle.
+  int server_conflicts;
+
+  // Number of items successfully committed during most recent sync cycle.
+  int committed_count;
+
+  bool syncing;
+  // True after a client has done a first sync.
+  bool initial_sync_ended;
+
+  // Total updates available.  If zero, nothing left to download.
+  int64 updates_available;
+  // Total updates received by the syncer since browser start.
+  int updates_received;
+  // Total updates received that are echoes of our own changes.
+  int reflected_updates_received;
+  // Of updates_received, how many were tombstones.
+  int tombstone_updates_received;
+
+  // Total successful commits.
+  int num_commits_total;
+
+  // Total number of overwrites due to conflict resolver since browser start.
+  int num_local_overwrites_total;
+  int num_server_overwrites_total;
+
+  // Count of empty and non empty getupdates;
+  int nonempty_get_updates;
+  int empty_get_updates;
+
+  // Count of sync cycles that successfully committed items;
+  int sync_cycles_with_commits;
+  int sync_cycles_without_commits;
+
+  // Count of useless and useful syncs we perform.
+  int useless_sync_cycles;
+  int useful_sync_cycles;
+
+  // Encryption related.
+  syncable::ModelTypeSet encrypted_types;
+  bool cryptographer_ready;
+  bool crypto_has_pending_keys;
+
+  // Per-datatype throttled status.
+  syncable::ModelTypeSet throttled_types;
+
+  // The unique identifer for this client.
+  std::string unique_id;
+};
+
+}  // namespace sync_api
+
+#endif  // SYNC_INTERNAL_API_PUBLIC_ENGINE_STATUS_SUMMARY_H_