Update euclid.

There are a few canvas2d-related dependencies that haven't updated, but they
only use euclid internally so that's not blocking landing the rest of the
changes.

Given the size of this patch, I think it's useful to get this landed as-is.

components/gfx/Cargo.toml

@@ -16,7 +16,7 @@ doctest = false
 [dependencies]
 app_units = "0.7"
 bitflags = "1.0"
-euclid = "0.19"
+euclid = "0.20"
 fnv = "1.0"
 fontsan = {git = "https://github.com/servo/fontsan"}
 gfx_traits = {path = "../gfx_traits"}

components/gfx/font.rs

@@ -12,7 +12,7 @@ use crate::text::glyph::{ByteIndex, GlyphData, GlyphId, GlyphStore};
 use crate::text::shaping::ShaperMethods;
 use crate::text::Shaper;
 use app_units::Au;
-use euclid::{Point2D, Rect, Size2D};
+use euclid::default::{Point2D, Rect, Size2D};
 use ordered_float::NotNan;
 use servo_atoms::Atom;
 use smallvec::SmallVec;

components/gfx/text/glyph.rs

@@ -3,7 +3,7 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 use app_units::Au;
-use euclid::Point2D;
+use euclid::default::Point2D;
 #[cfg(any(target_feature = "sse2", target_feature = "neon"))]
 use packed_simd::u32x4;
 use range::{self, EachIndex, Range, RangeIndex};

components/gfx/text/shaping/harfbuzz.rs

@@ -10,7 +10,7 @@ use crate::text::glyph::{ByteIndex, GlyphData, GlyphId, GlyphStore};
 use crate::text::shaping::ShaperMethods;
 use crate::text::util::{fixed_to_float, float_to_fixed, is_bidi_control};
 use app_units::Au;
-use euclid::Point2D;
+use euclid::default::Point2D;
 // Eventually we would like the shaper to be pluggable, as many operating systems have their own
 // shapers. For now, however, HarfBuzz is a hard dependency.
 use harfbuzz_sys::hb_blob_t;