diff --git a/services/surfaceflinger/BufferLayer.cpp b/services/surfaceflinger/BufferLayer.cpp
index 5b28384..8ecdd95 100644
--- a/services/surfaceflinger/BufferLayer.cpp
+++ b/services/surfaceflinger/BufferLayer.cpp
@@ -843,6 +843,13 @@
     mDrawingState.inputInfo = tmpInputInfo;
 }
 
+void BufferLayer::setTransformHint(ui::Transform::RotationFlags displayTransformHint) const {
+    mTransformHint = getFixedTransformHint();
+    if (mTransformHint == ui::Transform::ROT_INVALID) {
+        mTransformHint = displayTransformHint;
+    }
+}
+
 } // namespace android
 
 #if defined(__gl_h_)