Make about:net-internal's filters work a bit better.

chrome/browser/resources/net_internals/table_printer.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.
 
 /**
  * TablePrinter is a helper to format a table as ASCII art or an HTML table.
  *
  * Usage: call addRow() and addCell() repeatedly to specify the data.
  *
  * addHeaderCell() can optionally be called to specify header cells for a
@@ skipping 93 matching lines @@
     getCell_: function(rowIndex, columnIndex) {
       if (rowIndex >= this.rows_.length)
         return null;
       var row = this.rows_[rowIndex];
       if (columnIndex >= row.length)
         return null;
       return row[columnIndex];
     },
 
     /**
+     * Returns true if searchString can be found entirely within a cell.
+     * Case insensitive.
+     *
+     * @param {string} string String to search for, must be lowercase.
+     * @return {boolean} True if some cell contains searchString.
+     */
+    search: function(searchString) {
+      var numColumns = this.getNumColumns();
+      for (var r = 0; r < this.rows_.length; ++r) {
+        for (var c = 0; c < numColumns; ++c) {
+          var cell = this.getCell_(r, c);
+          if (!cell)
+            continue;
+          if (cell.text.toLowerCase().indexOf(searchString) != -1)
+            return true;
+        }
+      }
+      return false;
+    },
+
+    /**
      * Prints a formatted text representation of the table data to the
      * node |parent|.  |spacing| indicates number of extra spaces, if any,
      * to add between columns.
      */
     toText: function(spacing, parent) {
       var pre = addNode(parent, 'pre');
       var numColumns = this.getNumColumns();
 
       // Figure out the maximum width of each column.
       var columnWidths = [];
@@ skipping 135 matching lines @@
    */
   function TablePrinterCell(value) {
     this.text = '' + value;
     this.link = null;
     this.alignRight = false;
     this.allowOverflow = false;
   }
 
   return TablePrinter;
 })();