Derive the Default trait for dictionaries containing GC values.

1 files changed, 3 insertions, 2 deletions

diff --git a/components/script/dom/bindings/str.rs b/components/script/dom/bindings/str.rs
index ea0b4f529b0..b665b64da8a 100644
--- a/components/script/dom/bindings/str.rs
+++ b/components/script/dom/bindings/str.rs
@@ -9,6 +9,7 @@ use html5ever::{LocalName, Namespace};
 use servo_atoms::Atom;
 use std::ascii::AsciiExt;
 use std::borrow::{Borrow, Cow, ToOwned};
+use std::default::Default;
 use std::fmt;
 use std::hash::{Hash, Hasher};
 use std::marker::PhantomData;
@@ -18,7 +19,7 @@ use std::str;
 use std::str::{Bytes, FromStr};
 
 /// Encapsulates the IDL `ByteString` type.
-#[derive(Clone, Debug, Eq, HeapSizeOf, JSTraceable, PartialEq)]
+#[derive(Clone, Debug, Default, Eq, HeapSizeOf, JSTraceable, PartialEq)]
 pub struct ByteString(Vec<u8>);
 
 impl ByteString {
@@ -77,7 +78,7 @@ impl ops::Deref for ByteString {
 
 /// A string that is constructed from a UCS-2 buffer by replacing invalid code
 /// points with the replacement character.
-#[derive(Clone, HeapSizeOf)]
+#[derive(Clone, Default, HeapSizeOf)]
 pub struct USVString(pub String);