[Sync] Move some things from driver to base.

components/sync/base/invalidation_adapter.h

Index: components/sync/base/invalidation_adapter.h
diff --git a/components/sync/driver/invalidation_adapter.h b/components/sync/base/invalidation_adapter.h
similarity index 83%
rename from components/sync/driver/invalidation_adapter.h
rename to components/sync/base/invalidation_adapter.h
index cf7212c2e894e120cc909a9d8c2f24da2bf1d0ea..07a02023cc8293d143a529dbc3f5c3c6dbefe7a2 100644
--- a/components/sync/driver/invalidation_adapter.h
+++ b/components/sync/base/invalidation_adapter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_SYNC_DRIVER_INVALIDATION_ADAPTER_H_
-#define COMPONENTS_SYNC_DRIVER_INVALIDATION_ADAPTER_H_
+#ifndef COMPONENTS_SYNC_BASE_INVALIDATION_ADAPTER_H_
+#define COMPONENTS_SYNC_BASE_INVALIDATION_ADAPTER_H_
 
 #include <stdint.h>
 
@@ -33,4 +33,4 @@ class InvalidationAdapter : public InvalidationInterface {
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_DRIVER_INVALIDATION_ADAPTER_H_
+#endif  // COMPONENTS_SYNC_BASE_INVALIDATION_ADAPTER_H_