Use byte indices instead of char indices for text runs

Replace character indices with UTF-8 byte offsets throughout the code dealing
with text shaping and breaking.  This eliminates a lot of complexity when
converting from one to the other, and interoperates better with the rest of
the Rust ecosystem.

1 files changed, 2 insertions, 2 deletions

diff --git a/components/layout/display_list_builder.rs b/components/layout/display_list_builder.rs
index fb2847e9d77..1d9d29b4cdd 100644
--- a/components/layout/display_list_builder.rs
+++ b/components/layout/display_list_builder.rs
@@ -31,7 +31,7 @@ use gfx::display_list::{LineDisplayItem, OpaqueNode, SolidColorDisplayItem};
 use gfx::display_list::{StackingContext, StackingContextId, StackingContextType};
 use gfx::display_list::{TextDisplayItem, TextOrientation, WebRenderImageInfo};
 use gfx::paint_thread::THREAD_TINT_COLORS;
-use gfx::text::glyph::CharIndex;
+use gfx::text::glyph::ByteIndex;
 use gfx_traits::{color, ScrollPolicy};
 use inline::{FIRST_FRAGMENT_OF_ELEMENT, InlineFlow, LAST_FRAGMENT_OF_ELEMENT};
 use ipc_channel::ipc::{self, IpcSharedMemory};
@@ -965,7 +965,7 @@ impl FragmentDisplayListBuilding for Fragment {
             Some(insertion_point_index) => insertion_point_index,
             None => return,
         };
-        let range = Range::new(CharIndex(0), insertion_point_index);
+        let range = Range::new(ByteIndex(0), insertion_point_index);
         let advance = scanned_text_fragment_info.run.advance_for_range(&range);
 
         let insertion_point_bounds;