Enable sync for the settings from the Extension Settings API.

chrome/browser/sync/glue/extension_setting_data_type_controller.cc

Index: chrome/browser/sync/glue/extension_setting_data_type_controller.cc
diff --git a/chrome/browser/sync/glue/extension_setting_data_type_controller.cc b/chrome/browser/sync/glue/extension_setting_data_type_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..1697991ace9e44769afa417dbfc84b803f80d237
--- /dev/null
+++ b/chrome/browser/sync/glue/extension_setting_data_type_controller.cc
@@ -0,0 +1,57 @@
+// Copyright (c) 2011 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 "chrome/browser/sync/glue/extension_setting_data_type_controller.h"
+
+#include "base/metrics/histogram.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/sync/api/syncable_service.h"
+#include "chrome/browser/sync/glue/generic_change_processor.h"
+#include "chrome/browser/sync/profile_sync_factory.h"
+
+namespace browser_sync {
+
+ExtensionSettingDataTypeController::ExtensionSettingDataTypeController(
+    ProfileSyncFactory* profile_sync_factory,
+    Profile* profile,
+    ProfileSyncService* sync_service)
+    : FrontendDataTypeController(profile_sync_factory,
+                                 profile,
+                                 sync_service) {
+}
+
+ExtensionSettingDataTypeController::~ExtensionSettingDataTypeController() {
+}
+
+syncable::ModelType ExtensionSettingDataTypeController::type() const {
+  return syncable::EXTENSION_SETTINGS;
+}
+
+void ExtensionSettingDataTypeController::CreateSyncComponents() {
+  ProfileSyncFactory::SyncComponents sync_components =
+      profile_sync_factory_->CreateExtensionSettingSyncComponents(
+          sync_service_, this);
+  set_model_associator(sync_components.model_associator);
+  set_change_processor(sync_components.change_processor);
+}
+
+void ExtensionSettingDataTypeController::RecordUnrecoverableError(
+    const tracked_objects::Location& from_here,
+    const std::string& message) {
+  UMA_HISTOGRAM_COUNTS("Sync.ExtensionSettingRunFailures", 1);
+}
+
+void ExtensionSettingDataTypeController::RecordAssociationTime(
+    base::TimeDelta time) {
+  UMA_HISTOGRAM_TIMES("Sync.ExtensionSettingAssociationTime", time);
+}
+
+void ExtensionSettingDataTypeController::RecordStartFailure(
+    StartResult result) {
+  UMA_HISTOGRAM_ENUMERATION("Sync.ExtensionSettingStartFailures",
+                            result,
+                            MAX_START_RESULT);
+}
+
+}  // namespace browser_sync