Omnibox: Fix Scoring Bugs in URLs from History

components/omnibox/omnibox_field_trial.h

 // Copyright 2014 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 COMPONENTS_OMNIBOX_OMNIBOX_FIELD_TRIAL_H_
 #define COMPONENTS_OMNIBOX_OMNIBOX_FIELD_TRIAL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 274 matching lines @@
   // Please see GetRelevancyScore() under
   // chrome/browser/history::ScoredHistoryMatch for details.
   static std::string HQPExperimentalScoringBuckets();
 
   // Returns the topicality threshold for HQP experiments. Returns -1 if
   // |kHQPExperimentalScoringTopicalityThresholdParam| or
   // |kHQPExperimentalScoringEnabledParam| is not specified in the field trial.
   static float HQPExperimentalTopicalityThreshold();
 
   // ---------------------------------------------------------
+  // For the HQPFixFrequencyScoring experiment that's part of the
+  // bundled omnibox field trial.
+
+  // Returns true if HQP should apply the bug fixes to the GetFrequency()
+  // function.
+  static bool HQPFixFrequencyScoringBugs();
+
+  // ---------------------------------------------------------
   // Exposed publicly for the sake of unittests.
   static const char kBundledExperimentFieldTrialName[];
   // Rule names used by the bundled experiment.
   static const char kDisableProvidersRule[];
   static const char kShortcutsScoringMaxRelevanceRule[];
   static const char kSearchHistoryRule[];
   static const char kDemoteByTypeRule[];
   static const char kHQPBookmarkValueRule[];
   static const char kHQPDiscountFrecencyWhenFewVisitsRule[];
   static const char kHQPAllowMatchInTLDRule[];
   static const char kHQPAllowMatchInSchemeRule[];
   static const char kZeroSuggestRule[];
   static const char kZeroSuggestVariantRule[];
   static const char kAnswersInSuggestRule[];
   static const char kDisplayHintTextWhenPossibleRule[];
   static const char kDisableResultsCachingRule[];
   static const char kMeasureSuggestPollingDelayFromLastKeystrokeRule[];
   static const char kSuggestPollingDelayMsRule[];
+  static const char kHQPFixFrequencyScoringBugsRule[];
 
   // Parameter names used by the HUP new scoring experiments.
   static const char kHUPNewScoringEnabledParam[];
   static const char kHUPNewScoringTypedCountRelevanceCapParam[];
   static const char kHUPNewScoringTypedCountHalfLifeTimeParam[];
   static const char kHUPNewScoringTypedCountScoreBucketsParam[];
   static const char kHUPNewScoringVisitedCountRelevanceCapParam[];
   static const char kHUPNewScoringVisitedCountHalfLifeTimeParam[];
   static const char kHUPNewScoringVisitedCountScoreBucketsParam[];
 
@@ skipping 26 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,
       metrics::OmniboxEventProto::PageClassification page_classification);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(OmniboxFieldTrial);
 };
 
 #endif  // COMPONENTS_OMNIBOX_OMNIBOX_FIELD_TRIAL_H_