diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 8a65fe9700f..eae16bf3274 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -1041,7 +1041,6 @@ dependencies = [
  "fnv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "geom 0.1.0 (git+https://github.com/servo/rust-geom)",
  "gfx 0.0.1",
- "gfx_traits 0.0.1",
  "html5ever 0.0.0 (git+https://github.com/servo/html5ever)",
  "hyper 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "js 0.1.0 (git+https://github.com/servo/rust-mozjs)",
diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 152bd0525f8..8ba1b36542f 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -334,7 +334,8 @@ resolution=600x800 == viewport_percentage_vw_vh.html viewport_percentage_vw_vh_b
 experimental == viewport_rule.html viewport_rule_ref.html
 == visibility_hidden.html visibility_hidden_ref.html
 
-flaky_cpu == webgl-context/clearcolor.html webgl-context/clearcolor_ref.html
+== webgl-context/clearcolor.html webgl-context/clearcolor_ref.html
+== webgl-context/draw_arrays_simple.html webgl-context/draw_arrays_simple_ref.html
 
 == whitespace_nowrap_a.html whitespace_nowrap_ref.html
 == whitespace_pre.html whitespace_pre_ref.html
@@ -343,5 +344,5 @@ flaky_cpu == webgl-context/clearcolor.html webgl-context/clearcolor_ref.html
 == word_spacing_a.html word_spacing_ref.html
 
 
-# This file is must be sorted alphabetically.
+# This file must be sorted alphabetically.
 # Please run `./mach test-tidy` to check your changes.
diff --git a/tests/ref/webgl-context/draw_arrays_simple.html b/tests/ref/webgl-context/draw_arrays_simple.html
new file mode 100644
index 00000000000..b006143491d
--- /dev/null
+++ b/tests/ref/webgl-context/draw_arrays_simple.html
@@ -0,0 +1,70 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>WebGL drawArrays test</title>
+<!--
+  This test should generate a 256x256 green square
+  on a 512x512 canvas
+-->
+<style>
+  html, body { margin: 0 }
+</style>
+<canvas id="c" width="512" height="512"></canvas>
+<script id="vertex_shader" type="x-shader/x-vertex">
+attribute vec2 a_position;
+
+void main() {
+  gl_Position = vec4(a_position, 0, 1);
+}
+</script>
+
+<script id="fragment_shader" type="x-shader/x-fragment">
+void main() {
+  gl_FragColor = vec4(0, 1, 0, 1);  // green
+}
+</script>
+<script>
+  var gl = document.getElementById('c').getContext('webgl');
+
+  // Clear white
+  gl.clearColor(1, 1, 1, 1);
+  gl.clear(gl.COLOR_BUFFER_BIT);
+
+  // Create the program
+  var vertex_shader = gl.createShader(gl.VERTEX_SHADER),
+      fragment_shader = gl.createShader(gl.FRAGMENT_SHADER),
+      program = gl.createProgram();
+
+  gl.shaderSource(vertex_shader,
+                  document.getElementById('vertex_shader').textContent);
+  gl.shaderSource(fragment_shader,
+                  document.getElementById('fragment_shader').textContent);
+  gl.compileShader(vertex_shader);
+  gl.compileShader(fragment_shader);
+  gl.attachShader(program, vertex_shader);
+  gl.attachShader(program, fragment_shader);
+  gl.linkProgram(program);
+  gl.useProgram(program);
+
+  // Get the position from the fragment shader
+  var position = gl.getAttribLocation(program, "a_position");
+
+  // Square as two triangles
+  var square_data = new Float32Array([
+    -0.5,  0.5, // top left
+     0.5,  0.5, // top right
+    -0.5, -0.5, // bottom left
+    -0.5, -0.5, // bottom left
+     0.5,  0.5, // top right
+     0.5, -0.5  // bottom right
+  ]);
+
+  // Create a buffer for the square with the square
+  // vertex data
+  var square_buffer = gl.createBuffer();
+  gl.bindBuffer(gl.ARRAY_BUFFER, square_buffer);
+  gl.bufferData(gl.ARRAY_BUFFER, square_data, gl.STATIC_DRAW);
+
+  gl.enableVertexAttribArray(position);
+  gl.vertexAttribPointer(position, 2, gl.FLOAT, false, 0, 0);
+  gl.drawArrays(gl.TRIANGLES, 0, square_data.length);
+</script>
diff --git a/tests/ref/webgl-context/draw_arrays_simple_ref.html b/tests/ref/webgl-context/draw_arrays_simple_ref.html
new file mode 100644
index 00000000000..975dc649337
--- /dev/null
+++ b/tests/ref/webgl-context/draw_arrays_simple_ref.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>WebGL drawArrays test</title>
+<style>
+  html, body { margin: 0 }
+  div {
+    position: absolute;
+    left: 128px;
+    top: 128px;
+    width: 256px;
+    height: 256px;
+    /* Totally green */
+    background-color: rgb(0, 255, 0);
+  }
+</style>
+<div></div>
