CrOS Files.app: fix the redraw logic on resize.

chrome/browser/resources/file_manager/js/file_table.js

 // Copyright (c) 2012 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.
 
 'use strict';
 
 /**
  * Namespace for utility functions.
  */
 var filelist = {};
 
 /**
  * Custom column model for advanced auto-resizing.
  *
  * @param {Array.<cr.ui.table.TableColumn>} tableColumns Table columns.
  * @extends {cr.ui.table.TableColumnModel}
  * @constructor
  */
 function FileTableColumnModel(tableColumns) {
   cr.ui.table.TableColumnModel.call(this, tableColumns);
 }
 
 /**
  * Inherits from cr.ui.Table.
  */
 FileTableColumnModel.prototype.__proto__ =
     cr.ui.table.TableColumnModel.prototype;
 
 /**
- * Normalizes widths to make their sum 100%. Uses the proportional approach
- * with some additional constraints.
+ * Normalizes widths to make their sum 100% if possible. Uses the proportional
+ * approach with some additional constraints.
  *
  * @param {number} contentWidth Target width.
  * @override
  */
 FileTableColumnModel.prototype.normalizeWidths = function(contentWidth) {
   var fixedWidth = 0;
   var flexibleWidth = 0;
 
   // Some columns have fixed width.
   for (var index = 0; index < this.size; index++) {
     var column = this.columns_[index];
     if (column.id == 'selection')
       fixedWidth += column.width;
     else
       flexibleWidth += column.width;
   }
 
-  var factor = (contentWidth - fixedWidth) / flexibleWidth;
+  var factor = Math.max(0, contentWidth - fixedWidth) / flexibleWidth;
   for (var index = 0; index < this.size; index++) {
     var column = this.columns_[index];
     if (column.id == 'selection')
       continue;
-    column.width = column.width * factor;
+    // Limits the minimum width to 1px to avoid flexibleWidth=0.
+    column.width = Math.max(1, column.width * factor);
   }
 };
 
 /**
  * File list Table View.
  * @constructor
  */
 function FileTable() {
   throw new Error('Designed to decorate elements');
 }
@@ skipping 741 matching lines @@
         break;
       }
     }
     if (url) {
       iconDiv.style.backgroundImage = 'url(' + url + ')';
     } else {
       iconDiv.style.backgroundImage = null;
     }
   }
 };