[IndexedDB] Adding traces, perf tests

tools/perf/page_sets/indexeddb_endure_page.py

+# Copyright 2015 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.
+
+from telemetry.page import page as page_module
+from telemetry import story
+
+class IndexedDBEndurePage(page_module.Page):
+
+  def __init__(self, subtest, page_set):
+    super(IndexedDBEndurePage, self).__init__(
+      url='file://indexeddb_perf/perf_test.html',
+      page_set=page_set,
+      name='indexeddb-endure-' + subtest)
+    self._subtest = subtest
+
+  def RunPageInteractions(self, action_runner):
+    action_runner.ExecuteJavaScript('window.testFilter = "' +
+                                    self._subtest + '";')
+    with action_runner.CreateInteraction('Action_Test'):
+      action_runner.ExecuteJavaScript('window.test();')
+      action_runner.WaitForJavaScriptCondition('window.done == true', 600)

[cmumford, 2015/08/03 17:31:34]

'window.done'

[dmurph, 2015/08/05 15:30:32]

Done.

+
+class IndexedDBEndurePageSet(story.StorySet):
+  """The IndexedDB Endurance page set."""

[cmumford, 2015/08/03 17:31:34]

Documentation doesn't really tell me anything.

[dmurph, 2015/08/05 15:30:33]

Done.

+
+  def __init__(self):
+    super(IndexedDBEndurePageSet, self).__init__()
+    self.AddStory(IndexedDBEndurePage('testCreateAndDeleteDatabases', self))

[cmumford, 2015/08/03 17:31:34]

Nit: Since these lines are identical what do you think about:

tests = [
  'testCreateAndDeleteDatabases',
  'testCreateKeysInStores',
  ...
]
for test in tests:
  self.AddStory(IndexedDBEndurePage(test, self)

I don't know - more of a style type change, but something to consider.

[dmurph, 2015/08/05 15:30:33]

Nice, done.

+    self.AddStory(IndexedDBEndurePage('testCreateAndDeleteDatabase', self))
+    self.AddStory(IndexedDBEndurePage('testCreateKeysInStores', self))
+    self.AddStory(IndexedDBEndurePage('testRandomReadsAndWritesWithoutIndex',
+                                      self))
+    self.AddStory(IndexedDBEndurePage('testRandomReadsAndWritesWithIndex',
+                                      self))
+    self.AddStory(IndexedDBEndurePage('testCursorReadsAndRandomWrites', self))
+    self.AddStory(IndexedDBEndurePage('testReadCacheWithoutIndex', self))
+    self.AddStory(IndexedDBEndurePage('testReadCacheWithIndex', self))
+    self.AddStory(IndexedDBEndurePage('testCreateAndDeleteIndex', self))
+    self.AddStory(IndexedDBEndurePage('testWalkingMultipleCursors', self))
+    self.AddStory(IndexedDBEndurePage('testCursorSeeksWithoutIndex', self))
+    self.AddStory(IndexedDBEndurePage('testCursorSeeksWithIndex', self))