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

sync/notifier/mock_invalidation_state_tracker.h

Index: sync/notifier/mock_invalidation_state_tracker.h
diff --git a/sync/notifier/mock_invalidation_state_tracker.h b/sync/notifier/mock_invalidation_state_tracker.h
new file mode 100644
index 0000000000000000000000000000000000000000..7bec961567bd2b6b635d09d787b28e39acb2c2da
--- /dev/null
+++ b/sync/notifier/mock_invalidation_state_tracker.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2012 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.
+
+#ifndef SYNC_NOTIFIER_MOCK_INVALIDATION_STATE_TRACKER_H_
+#define SYNC_NOTIFIER_MOCK_INVALIDATION_STATE_TRACKER_H_
+
+#include "base/memory/weak_ptr.h"
+#include "sync/notifier/invalidation_state_tracker.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace sync_notifier {
+
+class MockInvalidationStateTracker
+    : public InvalidationStateTracker,
+      public base::SupportsWeakPtr<MockInvalidationStateTracker> {
+ public:
+  MockInvalidationStateTracker();
+  virtual ~MockInvalidationStateTracker();
+
+  MOCK_CONST_METHOD0(GetAllMaxVersions, InvalidationVersionMap());
+  MOCK_METHOD2(SetMaxVersion, void(syncable::ModelType, int64));
+  MOCK_CONST_METHOD0(GetInvalidationState, std::string());
+  MOCK_METHOD1(SetInvalidationState, void(const std::string&));
+};
+
+}  // namespace sync_notifier
+
+#endif  // SYNC_NOTIFIER_MOCK_INVALIDATION_STATE_TRACKER_H_