Enable blurs

Bug: 181092919
Test: manual; performance scripts
Change-Id: I5875a99167e80ddd5b79fc245f988d8a6ac167be
diff --git a/device.mk b/device.mk
index 8c8ae69..1d6bb2d 100644
--- a/device.mk
+++ b/device.mk
@@ -633,6 +633,8 @@
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += ro.surface_flinger.set_display_power_timer_ms=1000
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += ro.surface_flinger.use_content_detection_for_refresh_rate=true
 
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += ro.surface_flinger.supports_background_blur=1
+
 # Must align with HAL types Dataspace
 # The data space of wide color gamut composition preference is Dataspace::DISPLAY_P3
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += ro.surface_flinger.wcg_composition_dataspace=143261696