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-rw-r--r--chromeos/dbus/power_manager_client.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/chromeos/dbus/power_manager_client.h b/chromeos/dbus/power_manager_client.h
index 3100de8..eb19947 100644
--- a/chromeos/dbus/power_manager_client.h
+++ b/chromeos/dbus/power_manager_client.h
@@ -162,7 +162,7 @@ class CHROMEOS_EXPORT PowerManagerClient {
uint32 request_id,
uint32 duration,
int overrides,
- PowerStateRequestIdCallback callback) = 0;
+ const PowerStateRequestIdCallback& callback) = 0;
// Creates the instance.
static PowerManagerClient* Create(DBusClientImplementationType type,