Remove hidden API usage in WM Extensions impl

Reference implementation of WM Extensions included a hidden API
call, which is prohibited when coming from non-system apps.

Bug: 179968070
Test: Build, test on YT and sample apps
Change-Id: Ic8b215b811a5e5d6abaacdb8ff0bf82fc3995d99

2 files changed, 2 insertions, 2 deletions

diff --git a/libs/WindowManager/Jetpack/src/androidx/window/extensions/SampleExtensionImpl.java b/libs/WindowManager/Jetpack/src/androidx/window/extensions/SampleExtensionImpl.java
index 0bf6965beb5f..5c91cf41bfc6 100644
--- a/libs/WindowManager/Jetpack/src/androidx/window/extensions/SampleExtensionImpl.java
+++ b/libs/WindowManager/Jetpack/src/androidx/window/extensions/SampleExtensionImpl.java
@@ -72,7 +72,7 @@ class SampleExtensionImpl extends StubExtension implements
 
     private List<ExtensionDisplayFeature> getDisplayFeatures(@NonNull Activity activity) {
         List<ExtensionDisplayFeature> features = new ArrayList<>();
-        int displayId = activity.getDisplayId();
+        int displayId = activity.getDisplay().getDisplayId();
         if (displayId != DEFAULT_DISPLAY) {
             Log.w(TAG, "This sample doesn't support display features on secondary displays");
             return features;
diff --git a/libs/WindowManager/Jetpack/src/androidx/window/sidecar/SampleSidecarImpl.java b/libs/WindowManager/Jetpack/src/androidx/window/sidecar/SampleSidecarImpl.java
index 1094a0e2b4da..d3700f88d97f 100644
--- a/libs/WindowManager/Jetpack/src/androidx/window/sidecar/SampleSidecarImpl.java
+++ b/libs/WindowManager/Jetpack/src/androidx/window/sidecar/SampleSidecarImpl.java
@@ -84,7 +84,7 @@ class SampleSidecarImpl extends StubSidecar implements
 
     private List<SidecarDisplayFeature> getDisplayFeatures(@NonNull Activity activity) {
         List<SidecarDisplayFeature> features = new ArrayList<SidecarDisplayFeature>();
-        int displayId = activity.getDisplayId();
+        int displayId = activity.getDisplay().getDisplayId();
         if (displayId != DEFAULT_DISPLAY) {
             Log.w(TAG, "This sample doesn't support display features on secondary displays");
             return features;