X-Chrome-Variations logic refactoring

chrome/browser/autocomplete/autocomplete_field_trial.cc

 // 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.
 
 #include "chrome/browser/autocomplete/autocomplete_field_trial.h"
 
 #include <string>
 
 #include "base/metrics/field_trial.h"
 #include "base/string_number_conversions.h"
 #include "chrome/common/metrics/variations/variation_ids.h"
 #include "chrome/common/metrics/variations/variations_util.h"
 
 namespace {
 
 // Field trial names.
 static const char kDisallowInlineHQPFieldTrialName[] =
     "OmniboxDisallowInlineHQP";
 // Because we regularly change the name of the suggest field trial in
 // order to shuffle users among groups, we use the date the current trial
 // was created as part of the name.
-static const char kSuggestFieldTrialStarted2012Q4Name[] =
-    "OmniboxSearchSuggestTrialStarted2012Q4";
+static const char kSuggestFieldTrialStarted2013Q1Name[] =
+    "OmniboxSearchSuggestTrialStarted2013Q1";
 static const char kHQPNewScoringFieldTrialName[] =
     "OmniboxHQPNewScoringMax1400";
 static const char kHUPCullRedirectsFieldTrialName[] = "OmniboxHUPCullRedirects";
 static const char kHUPCreateShorterMatchFieldTrialName[] =
     "OmniboxHUPCreateShorterMatch";
 static const char kHQPReplaceHUPScoringFieldTrialName[] =
     "OmniboxHQPReplaceHUPRearrangeNumComponents";
 static const char kHQPOnlyCountMatchesAtWordBoundariesFieldTrialName[] =
     "OmniboxHQPOnlyCountMatchesAtWordBoundaries";
 
@@ skipping 92 matching lines @@
   // at a particular spot in the drop-down--we're going to make these
   // field trials sticky.  We want users to stay in them once assigned
   // so they have a better experience and also so we don't get weird
   // effects as omnibox ranking keeps changing and users learn they can't
   // trust the omnibox.
   trial->UseOneTimeRandomization();
   disallow_inline_hqp_experiment_group = trial->AppendGroup("DisallowInline",
       kDisallowInlineHQPFieldTrialExperimentFraction);
 
   // Create the suggest field trial.
-  // Make it expire on July 1, 2013.
+  // Make it expire on September 1, 2013.
   trial = base::FieldTrialList::FactoryGetFieldTrial(
-      kSuggestFieldTrialStarted2012Q4Name, kSuggestFieldTrialNumberOfGroups,
-      "0", 2013, 7, 1, NULL);
+      kSuggestFieldTrialStarted2013Q1Name, kSuggestFieldTrialNumberOfGroups,
+      "0", 2013, 9, 1, NULL);
   trial->UseOneTimeRandomization();
 
   // Mark this group in suggest requests to Google.
   chrome_variations::AssociateGoogleVariationID(
       chrome_variations::GOOGLE_WEB_PROPERTIES,
-      kSuggestFieldTrialStarted2012Q4Name, "0",
-      chrome_variations::kSuggestTrialStarted2012Q4IDMin);
+      kSuggestFieldTrialStarted2013Q1Name, "0",
+      chrome_variations::kSuggestTrialStarted2013Q1IDMin);
   DCHECK_EQ(kSuggestFieldTrialNumberOfGroups,
-      chrome_variations::kSuggestTrialStarted2012Q4IDMax -
-      chrome_variations::kSuggestTrialStarted2012Q4IDMin + 1);
+      chrome_variations::kSuggestTrialStarted2013Q1IDMax -
+      chrome_variations::kSuggestTrialStarted2013Q1IDMin + 1);
 
   // We've already created one group; now just need to create
   // kSuggestFieldTrialNumGroups - 1 more. Mark these groups in
   // suggest requests to Google.
   for (int i = 1; i < kSuggestFieldTrialNumberOfGroups; i++) {
     const std::string group_name = base::IntToString(i);
     trial->AppendGroup(group_name, 1);
     chrome_variations::AssociateGoogleVariationID(
         chrome_variations::GOOGLE_WEB_PROPERTIES,
-        kSuggestFieldTrialStarted2012Q4Name, group_name,
+        kSuggestFieldTrialStarted2013Q1Name, group_name,
         static_cast<chrome_variations::VariationID>(
-            chrome_variations::kSuggestTrialStarted2012Q4IDMin + i));
+            chrome_variations::kSuggestTrialStarted2013Q1IDMin + i));
   }
 
   // Make sure that we participate in the suggest experiment by calling group()
   // on the newly created field trial.  This is necessary to activate the field
   // trial group as there are no more references to it within the Chrome code.
   trial->group();
 
   // Create inline History Quick Provider new scoring field trial.
   // Make it expire on April 14, 2013.
   trial = base::FieldTrialList::FactoryGetFieldTrial(
@@ skipping 127 matching lines @@
 bool AutocompleteFieldTrial::
     InHQPOnlyCountMatchesAtWordBoundariesFieldTrialExperimentGroup() {
   if (!InHQPOnlyCountMatchesAtWordBoundariesFieldTrial())
     return false;
 
   // Return true if we're in the experiment group.
   const int group = base::FieldTrialList::FindValue(
       kHQPOnlyCountMatchesAtWordBoundariesFieldTrialName);
   return group == hqp_only_count_matches_at_word_boundaries_experiment_group;
 }