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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/buffers/delete-buffer.html b/dom/canvas/test/webgl-conf/checkout/conformance2/buffers/delete-buffer.html
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+<!--
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+-->
+
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL buffer deletion behavior test.</title>
+<link rel="stylesheet" href="../../resources/js-test-style.css"/>
+<script src="../../js/js-test-pre.js"></script>
+<script src="../../js/webgl-test-utils.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+"use strict";
+description("Test buffer deletion behavior.");
+// This is a regression test for https://crbug.com/822976
+
+var wtu = WebGLTestUtils;
+
+var gl = wtu.create3DContext(undefined, undefined, 2);
+wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+
+function runTexImageTest(gl) {
+  debug("");
+  var buffer = gl.createBuffer();
+  gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, buffer);
+  gl.bufferData(gl.PIXEL_UNPACK_BUFFER, 4, gl.DYNAMIC_DRAW);
+  gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer);
+  gl.deleteBuffer(buffer);
+  // Indexed uniform buffer bindings should not prevent a buffer from being
+  // deleted. Therefore, PIXEL_UNPACK_BUFFER binding should also be 0.
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error");
+
+  var tex = gl.createTexture();
+  gl.bindTexture(gl.TEXTURE_2D, tex);
+  var data = new Uint8Array(1024);
+  gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, 16, 16, 0,
+                gl.RGBA, gl.UNSIGNED_BYTE, data);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage2D should succeed");
+
+  // Clean up bindings just in case an implementation gets it wrong.
+  gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, null);
+  gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, null);
+}
+
+function runReadPixelsTest(gl) {
+  debug("");
+  var buffer = gl.createBuffer();
+  gl.bindBuffer(gl.PIXEL_PACK_BUFFER, buffer);
+  gl.bufferData(gl.PIXEL_PACK_BUFFER, 4, gl.DYNAMIC_DRAW);
+  gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer);
+  gl.deleteBuffer(buffer);
+  // Indexed transform feedback buffer bindings should not prevent a buffer
+  // from being deleted. Therefore, PIXEL_PACK_BUFFER binding should also be 0.
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error");
+
+  var buffer = new Uint8Array(1024);
+  gl.readPixels(0, 0, 16, 16, gl.RGBA, gl.UNSIGNED_BYTE, buffer);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "readPixels should succeed");
+
+  // Clean up bindings just in case an implementation gets it wrong.
+  gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null);
+  gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, null);
+}
+
+runTexImageTest(gl);
+runReadPixelsTest(gl);
+
+debug("");
+var successfullyParsed = true;
+</script>
+<script src="../../js/js-test-post.js"></script>
+</body>
+</html>