[Sync] Refactored ProfileSyncService and remove its backend() function

chrome/browser/sync/glue/password_model_associator.cc

 // Copyright (c) 2010 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/password_model_associator.h"
 
 #include <set>
 
 #include "base/stl_util-inl.h"
 #include "base/utf_string_conversions.h"
@@ skipping 27 matching lines @@
 
 PasswordModelAssociator::~PasswordModelAssociator() {}
 
 bool PasswordModelAssociator::AssociateModels() {
   DCHECK(expected_loop_ == MessageLoop::current());
   {
     base::AutoLock lock(abort_association_pending_lock_);
     abort_association_pending_ = false;
   }
 
-  sync_api::WriteTransaction trans(
-      sync_service_->backend()->GetUserShareHandle());
+  sync_api::WriteTransaction trans(sync_service_->GetUserShare());
   sync_api::ReadNode password_root(&trans);
   if (!password_root.InitByTagLookup(kPasswordTag)) {
     LOG(ERROR) << "Server did not create the top-level password node. We "
                << "might be running against an out-of-date server.";
     return false;
   }
 
   std::vector<webkit_glue::PasswordForm*> passwords;
   if (!password_store_->FillAutofillableLogins(&passwords) ||
       !password_store_->FillBlacklistLogins(&passwords)) {
@@ skipping 109 matching lines @@
 
 bool PasswordModelAssociator::SyncModelHasUserCreatedNodes(bool* has_nodes) {
   DCHECK(has_nodes);
   *has_nodes = false;
   int64 password_sync_id;
   if (!GetSyncIdForTaggedNode(kPasswordTag, &password_sync_id)) {
     LOG(ERROR) << "Server did not create the top-level password node. We "
                << "might be running against an out-of-date server.";
     return false;
   }
-  sync_api::ReadTransaction trans(
-      sync_service_->backend()->GetUserShareHandle());
+  sync_api::ReadTransaction trans(sync_service_->GetUserShare());
 
   sync_api::ReadNode password_node(&trans);
   if (!password_node.InitByIdLookup(password_sync_id)) {
     LOG(ERROR) << "Server did not create the top-level password node. We "
                << "might be running against an out-of-date server.";
     return false;
   }
 
   // The sync model has user created nodes if the password folder has any
   // children.
@@ skipping 43 matching lines @@
   DCHECK(expected_loop_ == MessageLoop::current());
   SyncIdToPasswordMap::iterator iter = id_map_inverse_.find(sync_id);
   if (iter == id_map_inverse_.end())
     return;
   CHECK(id_map_.erase(iter->second));
   id_map_inverse_.erase(iter);
 }
 
 bool PasswordModelAssociator::GetSyncIdForTaggedNode(const std::string& tag,
                                                      int64* sync_id) {
-  sync_api::ReadTransaction trans(
-      sync_service_->backend()->GetUserShareHandle());
+  sync_api::ReadTransaction trans(sync_service_->GetUserShare());
   sync_api::ReadNode sync_node(&trans);
   if (!sync_node.InitByTagLookup(tag.c_str()))
     return false;
   *sync_id = sync_node.GetId();
   return true;
 }
 
 bool PasswordModelAssociator::WriteToPasswordStore(
          const PasswordVector* new_passwords,
          const PasswordVector* updated_passwords,
@@ skipping 132 matching lines @@
     const std::string& password_element,
     const std::string& signon_realm) {
   return EscapePath(origin_url) + "|" +
          EscapePath(username_element) + "|" +
          EscapePath(username_value) + "|" +
          EscapePath(password_element) + "|" +
          EscapePath(signon_realm);
 }
 
 }  // namespace browser_sync