SurfacePackage: Add release method

Oversight, the SurfacePackage holds a reference to the SurfaceControl
which is protected by a close-guard. We need a way to close it
explicitly. Going to follow up with a patch to have SurfaceView
manage the lifetime when the SurfacePackage is consumed, but want
to make sure this explicit release gets in ASAP.

Bug: 149591513
Test: Existing tests pass
Change-Id: I7276a2440c38cc6d859b79b4c3ee57bc122ce2a6

1 files changed, 11 insertions, 1 deletions

diff --git a/core/java/android/view/SurfaceControlViewHost.java b/core/java/android/view/SurfaceControlViewHost.java
index 41a384797521..b587fbe24767 100644
--- a/core/java/android/view/SurfaceControlViewHost.java
+++ b/core/java/android/view/SurfaceControlViewHost.java
@@ -52,7 +52,7 @@ public class SurfaceControlViewHost {
      * a SurfaceView by calling {@link SurfaceView#setChildSurfacePackage}.
      */
     public static final class SurfacePackage implements Parcelable {
-        private final SurfaceControl mSurfaceControl;
+        private SurfaceControl mSurfaceControl;
         private final IAccessibilityEmbeddedConnection mAccessibilityEmbeddedConnection;
 
         SurfacePackage(SurfaceControl sc, IAccessibilityEmbeddedConnection connection) {
@@ -97,6 +97,16 @@ public class SurfaceControlViewHost {
             out.writeStrongBinder(mAccessibilityEmbeddedConnection.asBinder());
         }
 
+        /**
+         * Release the SurfaceControl associated with the SurfacePackage.
+         */
+        public void release() {
+            if (mSurfaceControl != null) {
+                mSurfaceControl.release();
+             }
+             mSurfaceControl = null;
+        }
+
         public static final @NonNull Creator<SurfacePackage> CREATOR
              = new Creator<SurfacePackage>() {
                      public SurfacePackage createFromParcel(Parcel in) {