Convert Pass()→std::move() in sync/

sync/internal_api/public/sessions/sync_session_snapshot.cc

Index: sync/internal_api/public/sessions/sync_session_snapshot.cc
diff --git a/sync/internal_api/public/sessions/sync_session_snapshot.cc b/sync/internal_api/public/sessions/sync_session_snapshot.cc
index 9614330db67e4de4ee40587083a6309716ec44d7..2864d6995cefb654b46fe48908e12b58162f7aae 100644
--- a/sync/internal_api/public/sessions/sync_session_snapshot.cc
+++ b/sync/internal_api/public/sessions/sync_session_snapshot.cc
@@ -4,6 +4,8 @@
 
 #include "sync/internal_api/public/sessions/sync_session_snapshot.h"
 
+#include <utility>
+
 #include "base/json/json_writer.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
@@ -98,7 +100,7 @@ scoped_ptr<base::DictionaryValue> SyncSessionSnapshot::ToValue() const {
     const std::string model_type = ModelTypeToString(static_cast<ModelType>(i));
     counter_entries->Set(model_type, type_entries.release());
   }
-  value->Set("counter_entries", counter_entries.Pass());
+  value->Set("counter_entries", std::move(counter_entries));
   return value;
 }