Convert //sync from scoped_ptr to std::unique_ptr

sync/engine/get_updates_delegate.h

Index: sync/engine/get_updates_delegate.h
diff --git a/sync/engine/get_updates_delegate.h b/sync/engine/get_updates_delegate.h
index 9b8e09de7fca3d202a5a548ba233655972694af0..09765a8310741f94fc846ed7af1a9eadb5e9aee3 100644
--- a/sync/engine/get_updates_delegate.h
+++ b/sync/engine/get_updates_delegate.h
@@ -5,6 +5,8 @@
 #ifndef SYNC_ENGINE_GET_UPDATES_DELEGATE_H_
 #define SYNC_ENGINE_GET_UPDATES_DELEGATE_H_
 
+#include <memory>
+
 #include "base/macros.h"
 #include "sync/internal_api/public/events/protocol_event.h"
 #include "sync/protocol/sync.pb.h"
@@ -35,7 +37,7 @@ class SYNC_EXPORT GetUpdatesDelegate {
       sessions::StatusController* status,
       UpdateHandlerMap* update_handler_map) const = 0;
 
-  virtual scoped_ptr<ProtocolEvent> GetNetworkRequestEvent(
+  virtual std::unique_ptr<ProtocolEvent> GetNetworkRequestEvent(
       base::Time timestamp,
       const sync_pb::ClientToServerMessage& request) const = 0;
 };
@@ -56,7 +58,7 @@ class SYNC_EXPORT NormalGetUpdatesDelegate : public GetUpdatesDelegate {
                     sessions::StatusController* status,
                     UpdateHandlerMap* update_handler_map) const override;
 
-  scoped_ptr<ProtocolEvent> GetNetworkRequestEvent(
+  std::unique_ptr<ProtocolEvent> GetNetworkRequestEvent(
       base::Time timestamp,
       const sync_pb::ClientToServerMessage& request) const override;
 
@@ -85,7 +87,7 @@ class SYNC_EXPORT ConfigureGetUpdatesDelegate : public GetUpdatesDelegate {
                     sessions::StatusController* status,
                     UpdateHandlerMap* update_handler_map) const override;
 
-  scoped_ptr<ProtocolEvent> GetNetworkRequestEvent(
+  std::unique_ptr<ProtocolEvent> GetNetworkRequestEvent(
       base::Time timestamp,
       const sync_pb::ClientToServerMessage& request) const override;
 
@@ -113,7 +115,7 @@ class SYNC_EXPORT PollGetUpdatesDelegate : public GetUpdatesDelegate {
                     sessions::StatusController* status,
                     UpdateHandlerMap* update_handler_map) const override;
 
-  scoped_ptr<ProtocolEvent> GetNetworkRequestEvent(
+  std::unique_ptr<ProtocolEvent> GetNetworkRequestEvent(
       base::Time timestamp,
       const sync_pb::ClientToServerMessage& request) const override;