[Sync] Add support for loading, updating and querying delete journals in

sync/test/test_directory_backing_store.cc

Index: sync/test/test_directory_backing_store.cc
diff --git a/sync/test/test_directory_backing_store.cc b/sync/test/test_directory_backing_store.cc
index 81d059032e8b722922a3728d3b75be180876cefe..79604eb8786eeec44d0723e57d933bffab60b35e 100644
--- a/sync/test/test_directory_backing_store.cc
+++ b/sync/test/test_directory_backing_store.cc
@@ -23,6 +23,7 @@ TestDirectoryBackingStore::~TestDirectoryBackingStore() {
 
 DirOpenResult TestDirectoryBackingStore::Load(
     MetahandlesIndex* entry_bucket,
+    IdsIndex* delete_journals,
     Directory::KernelLoadInfo* kernel_load_info) {
   DCHECK(db_->is_open());
 
@@ -33,6 +34,8 @@ DirOpenResult TestDirectoryBackingStore::Load(
     return FAILED_DATABASE_CORRUPT;
   if (!LoadEntries(entry_bucket))
     return FAILED_DATABASE_CORRUPT;
+  if (!LoadDeleteJournals(delete_journals))
+    return FAILED_DATABASE_CORRUPT;
   if (!LoadInfo(kernel_load_info))
     return FAILED_DATABASE_CORRUPT;
   if (!VerifyReferenceIntegrity(*entry_bucket))