Finish decoupling sync and invalidations

components/invalidation/ack_handle.h

Index: components/invalidation/ack_handle.h
diff --git a/sync/internal_api/public/base/ack_handle.h b/components/invalidation/ack_handle.h
similarity index 80%
rename from sync/internal_api/public/base/ack_handle.h
rename to components/invalidation/ack_handle.h
index 99d03af9eb52e7cdfaf0d5751d472d6a7c8bee37..d32007a42172e00add96d2e76ec3fc2672da824c 100644
--- a/sync/internal_api/public/base/ack_handle.h
+++ b/components/invalidation/ack_handle.h
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SYNC_INTERNAL_API_PUBLIC_BASE_ACK_HANDLE_H
-#define SYNC_INTERNAL_API_PUBLIC_BASE_ACK_HANDLE_H
+#ifndef COMPONENTS_INVALIDATION_ACK_HANDLE_H_
+#define COMPONENTS_INVALIDATION_ACK_HANDLE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
-#include "sync/base/sync_export.h"
+#include "components/invalidation/invalidation_export.h"
 
 namespace base {
 class DictionaryValue;
@@ -20,7 +20,7 @@ namespace syncer {
 
 // Opaque class that represents a local ack handle. We don't reuse the
 // invalidation ack handles to avoid unnecessary dependencies.
-class SYNC_EXPORT AckHandle {
+class INVALIDATION_EXPORT AckHandle {
  public:
   static AckHandle CreateUnique();
   static AckHandle InvalidAckHandle();
@@ -44,4 +44,4 @@ class SYNC_EXPORT AckHandle {
 
 }  // namespace syncer
 
-#endif  // SYNC_INTERNAL_API_PUBLIC_BASE_ACK_HANDLE_H
+#endif  // COMPONENTS_INVALIDATION_ACK_HANDLE_H_