Clean up the unused Suggest field trial and make GetActiveSuggestFieldTrialHash

chrome/common/metrics/variations/variation_ids.h

 // 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.
 
 #ifndef CHROME_COMMON_METRICS_VARIATIONS_VARIATION_IDS_H_
 #define CHROME_COMMON_METRICS_VARIATIONS_VARIATION_IDS_H_
 
 namespace chrome_variations {
 
 // A list of Chrome Variation IDs. These IDs are associated with FieldTrials
@@ skipping 81 matching lines @@
 
   // USABLE IDs BEGIN HERE.
   //
   // The smallest possible Chrome Variation ID for use in real FieldTrials. If
   // you are defining variation IDs for your own FieldTrials, NEVER use a value
   // lower than this.
   MINIMUM_USER_ID = 3310000,
 
   // Add new variation IDs below.
 
+  // DEPRECATED - DO NOT USE
   // Name: OmniboxSearchSuggest
   // Range: 3310000 - 3310019
-  // Suggest (Autocomplete) field trial, 20 IDs.
   // Now retired.  But please don't reuse these IDs; they may taint
   // your experiment results.
   SUGGEST_ID_MIN = 3310000,
   SUGGEST_ID_MAX = 3310019,
 
   // Instant field trial.
   INSTANT_ID_CONTROL = 3310020,
   INSTANT_ID_SILENT  = 3310021,
   INSTANT_ID_HIDDEN  = 3310022,
   INSTANT_ID_SUGGEST = 3310023,
   INSTANT_ID_INSTANT = 3310024,
 
   // Instant dummy field trial.
   DUMMY_INSTANT_ID_DEFAULT      = 3310025,
   DUMMY_INSTANT_ID_CONTROL      = 3310026,
   DUMMY_INSTANT_ID_EXPERIMENT_1 = 3310027,
   DUMMY_INSTANT_ID_EXPERIMENT_2 = 3310028,
   DUMMY_INSTANT_ID_EXPERIMENT_3 = 3310049,
 
+  // DEPRECATED - DO NOT USE
   // Name: OmniboxSearchSuggestStarted2012Q4
   // Range: 3310029 - 3310048
-  // Suggest (Autocomplete) field trial, 20 IDs.  This differs from
-  // the earlier omnibox suggest field trial in this file because
-  // we created a new trial (with a new name) in order to shuffle IDs.
-  // We assign new experiment IDs because it's a good practice not to
-  // reuse experiment IDs.
+  // Now retired.  But please don't reuse these IDs; they may taint
+  // your experiment results.
   SUGGEST_TRIAL_STARTED_2012_Q4_ID_MIN = 3310029,
   SUGGEST_TRIAL_STARTED_2012_Q4_ID_MAX = 3310048,
 
   // Name: Instant channel and extended field trials.
   // Range: 3310050 - 3310059
   CHANNEL_INSTANT_ID_BETA            = 3310050,
   CHANNEL_INSTANT_ID_DEV             = 3310051,
   CHANNEL_INSTANT_ID_STABLE          = 3310052,
   EXTENDED_INSTANT_ID_CANARY_GROUP_1 = 3310053,
   EXTENDED_INSTANT_ID_CANARY_CONTROL = 3310054,
   EXTENDED_INSTANT_ID_DEV_GROUP_1    = 3310055,
   EXTENDED_INSTANT_ID_DEV_CONTROL    = 3310056,
 
+  // DEPRECATED - DO NOT USE
   // Name: OmniboxSearchSuggestTrialStarted2013Q1
   // Range: 3310060 - 3310079
-  // Suggest (Autocomplete) field trial, 20 IDs.  This differs from
-  // the earlier omnibox suggest field trials in this file because
-  // we created a new trial (with a new name) in order to shuffle IDs.
-  // We assign new experiment IDs because it's a good practice not to
-  // reuse experiment IDs.
+  // Now retired.  But please don't reuse these IDs; they may taint
+  // your experiment results.
   SUGGEST_TRIAL_STARTED_2013_Q1_ID_MIN = 3310060,
   SUGGEST_TRIAL_STARTED_2013_Q1_ID_MAX = 3310079,
 
   // Name: More IDs for the InstantExtended field trial.
   // Range: 3310080 - 3310085
   EXTENDED_INSTANT_ID_UNUSED_1         = 3310080,
   EXTENDED_INSTANT_ID_UNUSED_2         = 3310081,
   EXTENDED_INSTANT_ID_CANARY_CONTROL_2 = 3310082,
   EXTENDED_INSTANT_ID_DEV_CONTROL_2    = 3310083,
   EXTENDED_INSTANT_ID_CANARY_GROUP_2   = 3310084,
@@ skipping 54 matching lines @@
   //
   // The largest possible Chrome variation ID in the reserved range. When
   // defining your variation IDs, DO NOT exceed this value - GWS will ignore
   // your experiment!
   MAXIMUM_ID = 3399999,
 };
 
 }  // namespace chrome_variations
 
 #endif  // CHROME_COMMON_METRICS_VARIATIONS_VARIATION_IDS_H_