3 files changed, 1 insertions, 3 deletions
diff --git a/components/layout/display_list_builder.rs b/components/layout/display_list_builder.rs
index e97dca0c17b..7a6f3928aca 100644
--- a/components/layout/display_list_builder.rs
+++ b/components/layout/display_list_builder.rs
@@ -1163,7 +1163,7 @@ impl FragmentDisplayListBuilding for Fragment {
             for operation in operations {
                 let matrix = match operation {
                     &transform::ComputedOperation::Rotate(ax, ay, az, theta) => {
-                        let theta = f32::consts::PI_2 - theta.radians();
+                        let theta = 2.0f32 * f32::consts::PI - theta.radians();
                         Matrix4::create_rotation(ax, ay, az, theta)
                     }
                     &transform::ComputedOperation::Perspective(d) => {
diff --git a/components/layout/layout_task.rs b/components/layout/layout_task.rs
index 172fcf2ed3f..35ffc56fa05 100644
--- a/components/layout/layout_task.rs
+++ b/components/layout/layout_task.rs
@@ -63,7 +63,6 @@ use std::collections::HashMap;
 use std::collections::hash_state::DefaultState;
 use std::mem::transmute;
 use std::ops::{Deref, DerefMut};
-use std::ptr;
 use std::sync::mpsc::{channel, Sender, Receiver, Select};
 use std::sync::{Arc, Mutex, MutexGuard};
 use style::computed_values::{filter, mix_blend_mode};
diff --git a/components/layout/lib.rs b/components/layout/lib.rs
index 682b5ea3aec..01a544734de 100644
--- a/components/layout/lib.rs
+++ b/components/layout/lib.rs
@@ -6,7 +6,6 @@
 #![feature(arc_unique)]
 #![feature(box_syntax)]
 #![feature(filling_drop)]
-#![feature(float_consts)]
 #![feature(hashmap_hasher)]
 #![feature(heap_api)]
 #![feature(mpsc_select)]