use geom::num::Zero rather than the deprecated num::Zero trait in std

This fixes the following warning:
display_list/mod.rs:735:20: 735:30 warning: use of deprecated item: Use `Int::zero()` or `Float::zero()`., #[warn(deprecated)] on by default
display_list/mod.rs:735         let zero = Zero::zero();
                                           ^~~~~~~~~~

1 files changed, 1 insertions, 1 deletions

diff --git a/components/gfx/display_list/mod.rs b/components/gfx/display_list/mod.rs
index c6ad40c64d9..4ac959679a7 100644
--- a/components/gfx/display_list/mod.rs
+++ b/components/gfx/display_list/mod.rs
@@ -27,6 +27,7 @@ use text::TextRun;
 use azure::azure::AzFloat;
 use collections::dlist::{mod, DList};
 use geom::{Point2D, Rect, SideOffsets2D, Size2D, Matrix2D};
+use geom::num::Zero;
 use libc::uintptr_t;
 use paint_task::PaintLayer;
 use servo_msg::compositor_msg::LayerId;
@@ -37,7 +38,6 @@ use servo_util::geometry::{mod, Au, MAX_RECT, ZERO_POINT, ZERO_RECT};
 use servo_util::range::Range;
 use servo_util::smallvec::{SmallVec, SmallVec8};
 use std::fmt;
-use std::num::Zero;
 use std::slice::Items;
 use style::ComputedValues;
 use style::computed_values::border_style;