Adds doc to confusingly named method.

Adds clarification to the return value of isMatchForSystemOnly

Test: None; docs only change
Bug: 135203078
Change-Id: Idc0d26759ec93932ca5c30f4f563febd87c05f91

1 files changed, 4 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/pm/parsing/pkg/AndroidPackageUtils.java b/services/core/java/com/android/server/pm/parsing/pkg/AndroidPackageUtils.java
index 4a1a6a766726..a6f02e7842d3 100644
--- a/services/core/java/com/android/server/pm/parsing/pkg/AndroidPackageUtils.java
+++ b/services/core/java/com/android/server/pm/parsing/pkg/AndroidPackageUtils.java
@@ -241,6 +241,10 @@ public class AndroidPackageUtils {
         return PackageInfo.composeLongVersionCode(pkg.getVersionCodeMajor(), pkg.getVersionCode());
     }
 
+    /**
+     * Returns false iff the provided flags include the {@link PackageManager#MATCH_SYSTEM_ONLY}
+     * flag and the provided package is not a system package. Otherwise returns {@code true}.
+     */
     public static boolean isMatchForSystemOnly(AndroidPackage pkg, int flags) {
         if ((flags & PackageManager.MATCH_SYSTEM_ONLY) != 0) {
             return pkg.isSystem();