Index: base/field_trial.h |
=================================================================== |
--- base/field_trial.h (revision 19682) |
+++ base/field_trial.h (working copy) |
@@ -1,4 +1,4 @@ |
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
+// Copyright (c) 2006-2009 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. |
@@ -50,7 +50,7 @@ |
// "MemoryExperiment").data(), count); |
// The above code will create 3 distinct histograms, with each run of the |
-// application being assigned to of of teh three groups, and for each group, the |
+// application being assigned to of of the three groups, and for each group, the |
// correspondingly named histogram will be populated: |
// Memory.RendererTotal // 96% of users still fill this histogram. |
@@ -80,7 +80,9 @@ |
// Provide an easy way to assign all remaining probability to a group. Note |
// that this will force an instance to participate, and make it illegal to |
- // attempt to probabalistically add any other groups to the trial. |
+ // attempt to probabalistically add any other groups to the trial. When doing |
+ // A/B tests with timings, it is often best to define all groups, so that |
+ // histograms will get unique names via the MakeName() methods. |
static const Probability kAllRemainingProbability; |
// The name is used to register the instance with the FieldTrialList class, |