DevTools/Coverage: fix decorations in HTML

third_party/WebKit/Source/devtools/front_end/coverage/CoverageListView.js

 // Copyright (c) 2017 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.
 
 Coverage.CoverageListView = class extends UI.VBox {
   constructor() {
     super(true);
     /** @type {!Map<!Coverage.URLCoverageInfo, !Coverage.CoverageListView.GridNode>} */
     this._nodeForCoverageInfo = new Map();
     this.registerRequiredCSS('coverage/coverageListView.css');
@@ skipping 225 matching lines @@
       case 'unusedSize':
         var unusedSize = this._coverageInfo.unusedSize() || 0;
         var unusedSizeSpan = cell.createChild('span');
         var unusedPercentsSpan = cell.createChild('span', 'percent-value');
         unusedSizeSpan.textContent = Number.withThousandsSeparator(unusedSize);
         unusedPercentsSpan.textContent = Common.UIString('%.1f\xa0%%', unusedSize / this._coverageInfo.size() * 100);
         break;
       case 'bars':
         var barContainer = cell.createChild('div', 'bar-container');
         var unusedSizeBar = barContainer.createChild('div', 'bar bar-unused-size');
-        unusedSizeBar.style.width = Math.ceil(100 * this._coverageInfo.unusedSize() / this._maxSize) + '%';
+        unusedSizeBar.style.width = (100 * this._coverageInfo.unusedSize() / this._maxSize).toFixed(4) + '%';
         var usedSizeBar = barContainer.createChild('div', 'bar bar-used-size');
-        usedSizeBar.style.width = Math.floor(100 * this._coverageInfo.usedSize() / this._maxSize) + '%';
+        usedSizeBar.style.width = (100 * this._coverageInfo.usedSize() / this._maxSize).toFixed(4) + '%';
     }
     return cell;
   }
 };