Add comment to Typeface.Builder about file descriptor.

Add comment to Typeface.Builder about the responsibility of closing
file descriptor.

Bug: 37082657
Test: N/A
Change-Id: Id33b15895d75ad6693f3ad6231f1ba0c2cec9f79

diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index 56f9cc7..e097daa 100644 (file)
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -563,6 +563,9 @@ public class Typeface {
         /**
          * Constructs a builder with a file descriptor.
          *
+         * Caller is responsible for closing the passed file descriptor after {@link #build} is
+         * called.
+         *
          * @param fd The file descriptor. The passed fd must be mmap-able.
          */
         public Builder(@NonNull FileDescriptor fd) {