Use correct filename when adding to ringtone

If the title of the music file includes "/", it's recognized
as a directory separator.
Use correct filename to select the file properly.

Bug: 80202253
Test: Add mp3 which title includes "/" to ringtone

Change-Id: I9bb05f6fe2d7d4dbbdf4f67db7ac6fde04707979
diff --git a/media/java/android/media/RingtoneManager.java b/media/java/android/media/RingtoneManager.java
index 3eb9d52..e3450ee 100644
--- a/media/java/android/media/RingtoneManager.java
+++ b/media/java/android/media/RingtoneManager.java
@@ -33,6 +33,7 @@
 import android.media.MediaScannerConnection.MediaScannerConnectionClient;
 import android.net.Uri;
 import android.os.Environment;
+import android.os.FileUtils;
 import android.os.IBinder;
 import android.os.ParcelFileDescriptor;
 import android.os.Process;
@@ -955,7 +956,8 @@
 
         // Find a filename. Throws FileNotFoundException if none can be found.
         final File outFile = Utils.getUniqueExternalFile(mContext, subdirectory,
-                Utils.getFileDisplayNameFromUri(mContext, fileUri), mimeType);
+                FileUtils.buildValidFatFilename(Utils.getFileDisplayNameFromUri(mContext, fileUri)),
+                        mimeType);
 
         // Copy contents to external ringtone storage. Throws IOException if the copy fails.
         try (final InputStream input = mContext.getContentResolver().openInputStream(fileUri);