Use correct contains method in PermissionManagerService.

Hashtable#contains(String) is actually pre-generics method that maps to
Hashtable#containsValue(V). In this case, PermissionManagerService
actually wants to know if it contains a given key as the values in the
map are not Strings at all.

Bug: 217923092
Test: errorprone build
Change-Id: I1f315d1051aaab3831eaca34e12fc9858ee9aeda
diff --git a/services/Android.bp b/services/Android.bp
index 378ad54..654e8d0 100644
--- a/services/Android.bp
+++ b/services/Android.bp
@@ -19,6 +19,7 @@
             "-Xep:SelfEquals:ERROR",
             "-Xep:NullTernary:ERROR",
             "-Xep:TryFailThrowable:ERROR",
+            "-Xep:HashtableContains:ERROR",
             // NOTE: only enable to generate local patchfiles
             // "-XepPatchChecks:refaster:frameworks/base/errorprone/refaster/EfficientXml.java.refaster",
             // "-XepPatchLocation:/tmp/refaster/",
diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
index edc0e3d..d0bbe3d 100644
--- a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
@@ -1318,7 +1318,7 @@
 
                 if (op < 0) {
                     // Bg location is one-off runtime modifier permission and has no app op
-                    if (sPlatformPermissions.contains(permission)
+                    if (sPlatformPermissions.containsKey(permission)
                             && !Manifest.permission.ACCESS_BACKGROUND_LOCATION.equals(permission)
                             && !Manifest.permission.BODY_SENSORS_BACKGROUND.equals(permission)) {
                         Slog.wtf(LOG_TAG, "Platform runtime permission " + permission