Convert URI scheme to lower case before checking if it is a file. am: 58ee29c68e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Messaging/+/15998887

Change-Id: I54b996561d0248a4636e0991545cbfc0700e1ee4

src/com/android/messaging/util/UriUtil.java

@@ -94,8 +94,12 @@ public class UriUtil {
         return TextUtils.equals(scheme, ContentResolver.SCHEME_ANDROID_RESOURCE);
     }
 
+    /** Returns whether the given Uri is a file. */
     public static boolean isFileUri(final Uri uri) {
-        return uri != null && TextUtils.equals(uri.getScheme(), ContentResolver.SCHEME_FILE);
+        return uri != null &&
+                uri.getScheme() != null &&
+                TextUtils.equals(uri.getScheme().toLowerCase(),
+                        ContentResolver.SCHEME_FILE);
     }
 
     /**