Fix: DepthCapture_depthStreamToRGBAFloatTexture flaky on MAC ATI Retina

content/test/data/media/depth_stream_test_utilities.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 function getConstraintsForDevice(deviceLabel) {
   return new Promise(function(resolve, reject) {
     navigator.mediaDevices.enumerateDevices()
     .then(function(devices) {
       for (var i = 0; i < devices.length; ++i) {
         if (deviceLabel == devices[i].label) {
@@ skipping 43 matching lines @@
   // Calculate all reference points based on top left and compare.
   for (var j = 0; j < rowsColumnsToCheck.length; ++j) {
     var row = rowsColumnsToCheck[j][0];
     var column = rowsColumnsToCheck[j][1];
     var i = (width * row + column) * 4;
     if (data[i] != data[i + 1] || data[i] != data[i + 2]) {
       return Promise.reject(test_name + ": values " + data[i] + ", " +
                             data[i + 1] + ", " + data[i + 2] +
                             " differ at index " + i);
     }
-    var calculated = (data[0] +
+    var calculated = (data[0] + wrap_around +
                       step * ((flip_y ? -row : row) + column)) % wrap_around;
     if (Math.abs(calculated - data[i]) > tolerance) {
       return Promise.reject(test_name + ": reference value " + data[i] +
           " differs from calculated: " + calculated +
           " at index (row, column) " + i + " (" + row + ", " + column +
           "). TopLeft value:" + data[0] + ", step:" + step + ", flip_y:" +
           flip_y);
     }
   }
   return true;
 }