Add constant for dismiss Settings panel am: a4a79765e8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13109611

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I6a879e57493683718c157fbd36c37ae3095a65bf

packages/SettingsLib/src/com/android/settingslib/media/MediaOutputSliceConstants.java

@@ -92,4 +92,10 @@ public class MediaOutputSliceConstants {
      * SystemUi package name.
      */
     public static final String SYSTEMUI_PACKAGE_NAME = "com.android.systemui";
+
+    /**
+     * An intent action to close settings panel.
+     */
+    public static final String ACTION_CLOSE_PANEL =
+            "com.android.settings.panel.action.CLOSE_PANEL";
 }