diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 4165d01..3efd086 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -552,6 +552,14 @@
     return ComposerService::getComposerService()->getDisplayInfo(display, info);
 }
 
+void SurfaceComposerClient::blankDisplay(const sp<IBinder>& token) {
+    ComposerService::getComposerService()->blank(token);
+}
+
+void SurfaceComposerClient::unblankDisplay(const sp<IBinder>& token) {
+    ComposerService::getComposerService()->unblank(token);
+}
+
 // ----------------------------------------------------------------------------
 
 ScreenshotClient::ScreenshotClient()