[Sync] Move the last things out of core/.

components/sync/engine/activation_context.h

Index: components/sync/engine/activation_context.h
diff --git a/components/sync/core/activation_context.h b/components/sync/engine/activation_context.h
similarity index 75%
rename from components/sync/core/activation_context.h
rename to components/sync/engine/activation_context.h
index 78f6f69cc48a2c8ee226c169c933aca1f779db74..337d4920f558675bf4e0f4cb41714ddc04cf84cc 100644
--- a/components/sync/core/activation_context.h
+++ b/components/sync/engine/activation_context.h
@@ -2,16 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_SYNC_CORE_ACTIVATION_CONTEXT_H_
-#define COMPONENTS_SYNC_CORE_ACTIVATION_CONTEXT_H_
+#ifndef COMPONENTS_SYNC_ENGINE_ACTIVATION_CONTEXT_H_
+#define COMPONENTS_SYNC_ENGINE_ACTIVATION_CONTEXT_H_
 
 #include <memory>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/sequenced_task_runner.h"
-#include "components/sync/core/model_type_processor.h"
-#include "components/sync/core/non_blocking_sync_common.h"
+#include "components/sync/engine/model_type_processor.h"
+#include "components/sync/engine/non_blocking_sync_common.h"
 #include "components/sync/protocol/model_type_state.pb.h"
 
 namespace syncer {
@@ -32,4 +32,4 @@ struct ActivationContext {
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_CORE_ACTIVATION_CONTEXT_H_
+#endif  // COMPONENTS_SYNC_ENGINE_ACTIVATION_CONTEXT_H_