Omnibox: Launch URL Demotion in the Fakebox by Default

chrome/browser/omnibox/omnibox_field_trial.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_BROWSER_OMNIBOX_OMNIBOX_FIELD_TRIAL_H_
 #define CHROME_BROWSER_OMNIBOX_OMNIBOX_FIELD_TRIAL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 198 matching lines @@
   static bool SearchHistoryDisable(
       AutocompleteInput::PageClassification current_page_classification);
 
   // ---------------------------------------------------------
   // For the DemoteByType experiment that's part of the bundled omnibox field
   // trial.
 
   // If the user is in an experiment group that, in the provided
   // |current_page_classification| context, demotes the relevance scores
   // of certain types of matches, populates the |demotions_by_type| map
-  // appropriately.  Otherwise, clears |demotions_by_type|.
+  // appropriately.  Otherwise, sets |demotions_by_type| to its default
+  // value based on the context.
   static void GetDemotionsByType(
       AutocompleteInput::PageClassification current_page_classification,
       DemotionMultipliers* demotions_by_type);
 
   // Get the set of types that should not be demoted if they are the top
   // match.
   static UndemotableTopMatchTypes GetUndemotableTopTypes(
       AutocompleteInput::PageClassification current_page_classification);
 
   // ---------------------------------------------------------
@@ skipping 101 matching lines @@
   // prioritize different wildcard contexts, see the implementation.  How to
   // interpret the value is left to the caller; this is rule-dependent.
   static std::string GetValueForRuleInContext(
       const std::string& rule,
       AutocompleteInput::PageClassification page_classification);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(OmniboxFieldTrial);
 };
 
 #endif  // CHROME_BROWSER_OMNIBOX_OMNIBOX_FIELD_TRIAL_H_