sync: migrate invalidation state from syncable::Directory to InvalidationStorage

chrome/browser/sync/invalidations/invalidator_storage_unittest.cc

Index: chrome/browser/sync/invalidations/invalidator_storage_unittest.cc
diff --git a/chrome/browser/sync/invalidations/invalidator_storage_unittest.cc b/chrome/browser/sync/invalidations/invalidator_storage_unittest.cc
index 765f3322233a467ce794852f083301005d435f36..dd68a650aa01be3c5bea442437580fc523e97acc 100644
--- a/chrome/browser/sync/invalidations/invalidator_storage_unittest.cc
+++ b/chrome/browser/sync/invalidations/invalidator_storage_unittest.cc
@@ -7,6 +7,7 @@
 
 #include "base/message_loop.h"
 #include "base/string_number_conversions.h"
+#include "base/string_util.h"
 #include "chrome/test/base/testing_pref_service.h"
 #include "sync/syncable/model_type.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ -126,4 +127,13 @@ TEST_F(InvalidatorStorageTest, DeserializeBasic) {
   EXPECT_EQ(15, map[syncable::BOOKMARKS]);
 }
 
+TEST_F(InvalidatorStorageTest, SetGetInvalidationState) {
+  InvalidatorStorage storage(&pref_service_);
+  const std::string mess("n\0tK\0\0l\344", 8);
+  ASSERT_FALSE(IsStringUTF8(mess));
+
+  storage.SetInvalidationState(mess);
+  EXPECT_EQ(mess, storage.GetInvalidationState());
+}
+
 }  // namespace browser_sync