[IndexedDB] Adding traces, perf tests

chrome/test/data/indexeddb/perf_test.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.
 
 var overallTestStartTime = window.performance.now();
 var kUseIndex = true;
 var kDontUseIndex = false;
 var kReadKeysOnly = true;
 var kReadDataToo = false;
 var kWriteToo = true;
@@ skipping 80 matching lines @@
 // Open an index key cursor, then continue(key) to the last value.
   [testCursorSeeks, 2000, 10, 4, kUseIndex],
 ];
 
 var currentTest = 0;
 
 function test() {
   runNextTest();
 }
 
+var testFilter;
+
 function runNextTest() {
-  var filter = window.location.hash.slice(1);
+  var filter = testFilter;
   var test, f;
   while (currentTest < tests.length) {
     test = tests[currentTest];
     f = test.shift();
     if (!filter || f.name == filter)
       break;
     ++currentTest;
   }
 
   if (currentTest < tests.length) {
@@ skipping 466 matching lines @@
     request.onerror = onError;
     request.onsuccess = function() {
       var cursor = request.result;
       if (cursor && first) {
         first = false;
         cursor.continue(getKey(numKeys - 1));
       }
     };
   }
 }