Apps/Extensions Sync refactoring -- delete most of the old glue, implement new sync API.

chrome/browser/sync/glue/app_model_associator.cc

-// 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/app_model_associator.h"
-
-#include "base/logging.h"
-#include "base/tracked.h"
-#include "chrome/browser/extensions/extension_sync_data.h"
-#include "chrome/browser/sync/api/sync_error.h"
-#include "chrome/browser/sync/glue/extension_sync.h"
-#include "chrome/browser/sync/glue/extension_sync_traits.h"
-#include "chrome/browser/sync/glue/extension_sync_traits.h"
-#include "chrome/browser/sync/internal_api/read_transaction.h"
-#include "chrome/browser/sync/profile_sync_service.h"
-#include "chrome/browser/sync/protocol/extension_specifics.pb.h"
-#include "content/browser/browser_thread.h"
-
-namespace browser_sync {
-
-AppModelAssociator::AppModelAssociator(
-    ExtensionServiceInterface* extension_service,
-    sync_api::UserShare* user_share)
-    : traits_(GetAppSyncTraits()), extension_service_(extension_service),
-      user_share_(user_share) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(extension_service_);
-  DCHECK(user_share_);
-}
-
-AppModelAssociator::~AppModelAssociator() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-}
-
-bool AppModelAssociator::AssociateModels(SyncError* error) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  ExtensionDataMap extension_data_map;
-  if (!SlurpExtensionData(
-          traits_, *extension_service_, user_share_, &extension_data_map)) {
-    error->Reset(FROM_HERE, "Failed to get app data.", model_type());
-    return false;
-  }
-  if (!FlushExtensionData(
-          traits_, extension_data_map, extension_service_, user_share_)) {
-    error->Reset(FROM_HERE, "Failed to flush app data.", model_type());
-    return false;
-  }
-
-  return true;
-}
-
-bool AppModelAssociator::DisassociateModels(SyncError* error) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  // Nothing to do.
-  return true;
-}
-
-bool AppModelAssociator::SyncModelHasUserCreatedNodes(bool* has_nodes) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  return RootNodeHasChildren(traits_.root_node_tag, user_share_, has_nodes);
-}
-
-void AppModelAssociator::AbortAssociation() {
-  // No implementation needed, this associator runs on the main
-  // thread.
-}
-
-bool AppModelAssociator::CryptoReadyIfNecessary() {
-  // We only access the cryptographer while holding a transaction.
-  sync_api::ReadTransaction trans(FROM_HERE, user_share_);
-  const syncable::ModelTypeSet& encrypted_types =
-      sync_api::GetEncryptedTypes(&trans);
-  return encrypted_types.count(traits_.model_type) == 0 ||
-      trans.GetCryptographer()->is_ready();
-}
-
-}  // namespace browser_sync