Remove ScoreHistoryMatch::Builder

chrome/browser/autocomplete/scored_history_match_builder_impl.h

Index: chrome/browser/autocomplete/scored_history_match_builder_impl.h
diff --git a/chrome/browser/autocomplete/scored_history_match_builder_impl.h b/chrome/browser/autocomplete/scored_history_match_builder_impl.h
deleted file mode 100644
index 658785c36d5544e986ac72fd65700c7626261440..0000000000000000000000000000000000000000
--- a/chrome/browser/autocomplete/scored_history_match_builder_impl.h
+++ /dev/null
@@ -1,162 +0,0 @@
-// 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_AUTOCOMPLETE_SCORED_HISTORY_MATCH_BUILDER_IMPL_H_
-#define CHROME_BROWSER_AUTOCOMPLETE_SCORED_HISTORY_MATCH_BUILDER_IMPL_H_
-
-#include "base/callback.h"
-#include "base/strings/string16.h"
-#include "chrome/browser/autocomplete/in_memory_url_index_types.h"
-#include "chrome/browser/autocomplete/scored_history_match.h"
-#include "components/history/core/browser/history_types.h"
-#include "testing/gtest/include/gtest/gtest_prod.h"
-
-class ScoredHistoryMatchBuilderImplTest;
-
-// ScoredHistoryMatchBuilderImpl's Build method creates new history matches with
-// a raw score calculated for the history item given in |row| with recent visits
-// as indicated in |visits|. It first determines if the row qualifies by seeing
-// if all of the terms in |terms_vector| occur in |row|.  If so, calculates a
-// raw score.  This raw score is in part determined by whether the matches occur
-// at word boundaries, the locations of which are stored in |word_starts|.  For
-// some terms, it's appropriate to look for the word boundary within the term.
-// For instance, the term ".net" should look for a word boundary at the "n".
-// These offsets (".net" should have an offset of 1) come from
-// |terms_to_word_starts_offsets|. |is_bookmarked| is used to determine if the
-// match's URL is referenced by any bookmarks, which can also affect the raw
-// score.  The raw score allows the matches to be ordered and can be/ used to
-// influence the final score calculated by the client of this index.  If the row
-// does not qualify the raw score will be 0.  |languages| is used to help
-// parse/format the URL before looking for the terms.
-class ScoredHistoryMatchBuilderImpl : public ScoredHistoryMatch::Builder {
- public:
-  // Returns whether |url| is bookmarked which is used to affect the score. Must
-  // support being called multiple times.
-  typedef base::Callback<bool(const GURL& url)> IsBookmarkedCallback;
-
-  // ScoreMaxRelevance maps from an intermediate-score to the maximum
-  // final-relevance score given to a URL for this intermediate score.
-  // This is used to store the score ranges of HQP relevance buckets.
-  // Please see GetFinalRelevancyScore() for details.
-  typedef std::pair<double, int> ScoreMaxRelevance;
-
-  explicit ScoredHistoryMatchBuilderImpl(
-      const IsBookmarkedCallback& is_bookmarked);
-  ~ScoredHistoryMatchBuilderImpl() override;
-
-  // history::ScoredHistoryMatch implementation.
-  ScoredHistoryMatch Build(const history::URLRow& row,
-                           const VisitInfoVector& visits,
-                           const std::string& languages,
-                           const base::string16& lower_string,
-                           const String16Vector& terms_vector,
-                           const WordStarts& terms_to_word_starts_offsets,
-                           const RowWordStarts& word_starts,
-                           const base::Time now) const override;
-
-  // Returns |term_matches| after removing all matches that are not at a
-  // word break that are in the range [|start_pos|, |end_pos|).
-  // start_pos == string::npos is treated as start_pos = length of string.
-  // (In other words, no matches will be filtered.)
-  // end_pos == string::npos is treated as end_pos = length of string.
-  static TermMatches FilterTermMatchesByWordStarts(
-      const TermMatches& term_matches,
-      const WordStarts& terms_to_word_starts_offsets,
-      const WordStarts& word_starts,
-      size_t start_pos,
-      size_t end_pos);
-
- private:
-  friend class ScoredHistoryMatchBuilderImplTest;
-  FRIEND_TEST_ALL_PREFIXES(ScoredHistoryMatchBuilderImplTest,
-                           GetFinalRelevancyScore);
-  FRIEND_TEST_ALL_PREFIXES(ScoredHistoryMatchBuilderImplTest,
-                           GetHQPBucketsFromString);
-  FRIEND_TEST_ALL_PREFIXES(ScoredHistoryMatchBuilderImplTest, ScoringBookmarks);
-  FRIEND_TEST_ALL_PREFIXES(ScoredHistoryMatchBuilderImplTest, ScoringScheme);
-  FRIEND_TEST_ALL_PREFIXES(ScoredHistoryMatchBuilderImplTest, ScoringTLD);
-
-  // Initialize ScoredHistoryMatchBuilderImpl statics.
-  void Init();
-
-  // Return a topicality score based on how many matches appear in the url and
-  // the page's title and where they are (e.g., at word boundaries).  Revises
-  // url_matches and title_matches of |scored_history_match| in the process so
-  // they only reflect matches used for scoring.  (For instance, some mid-word
-  // matches are not given credit in scoring.)
-  static float GetTopicalityScore(
-      const int num_terms,
-      const base::string16& cleaned_up_url,
-      const WordStarts& terms_to_word_starts_offsets,
-      const RowWordStarts& word_starts,
-      ScoredHistoryMatch* scored_history_match);
-
-  // Returns a recency score based on |last_visit_days_ago|, which is
-  // how many days ago the page was last visited.
-  static float GetRecencyScore(int last_visit_days_ago);
-
-  // Examines the first kMaxVisitsToScore and return a score (higher is
-  // better) based the rate of visits, whether the page is bookmarked, and
-  // how often those visits are typed navigations (i.e., explicitly
-  // invoked by the user).  |now| is passed in to avoid unnecessarily
-  // recomputing it frequently.
-  static float GetFrequency(const base::Time& now,
-                            const bool bookmarked,
-                            const VisitInfoVector& visits);
-
-  // Combines the two component scores into a final score that's
-  // an appropriate value to use as a relevancy score. Scoring buckets are
-  // specified through |hqp_relevance_buckets|. Please see the function
-  // implementation for more details.
-  static float GetFinalRelevancyScore(
-      float topicality_score,
-      float frequency_score,
-      const std::vector<ScoreMaxRelevance>& hqp_relevance_buckets);
-
-  // Initializes the HQP experimental params: |hqp_relevance_buckets_|
-  // to default buckets. If hqp experimental scoring is enabled, it
-  // fetches the |hqp_experimental_scoring_enabled_|, |topicality_threshold_|
-  // and |hqp_relevance_buckets_| from omnibox field trials.
-  static void InitHQPExperimentalParams();
-
-  // Helper function to parse the string containing the scoring buckets.
-  // For example,
-  // String: "0.0:400,1.5:600,12.0:1300,20.0:1399"
-  // Buckets: vector[(0.0, 400),(1.5,600),(12.0,1300),(20.0,1399)]
-  // Returns false, in case if it fail to parse the string.
-  static bool GetHQPBucketsFromString(
-      const std::string& buckets_str,
-      std::vector<ScoreMaxRelevance>* hqp_buckets);
-
-  // Untyped visits to bookmarked pages score this, compared to 1 for
-  // untyped visits to non-bookmarked pages and 20 for typed visits.
-  static int bookmark_value_;
-
-  // If true, we allow input terms to match in the TLD (e.g., .com).
-  static bool allow_tld_matches_;
-
-  // If true, we allow input terms to match in the scheme (e.g., http://).
-  static bool allow_scheme_matches_;
-
-  // The IsBookmarkedCallback to use to check whether an URL is bookmarked. May
-  // be unset during testing.
-  IsBookmarkedCallback is_bookmarked_;
-
-  // True, if hqp experimental scoring is enabled.
-  static bool hqp_experimental_scoring_enabled_;
-
-  // |topicality_threshold_| is used to control the topicality scoring.
-  // If |topicality_threshold_| > 0, then URLs with topicality-score < threshold
-  // are given topicality score of 0. By default it is initalized to -1.
-  static float topicality_threshold_;
-
-  // |hqp_relevance_buckets_| gives mapping from (topicality*frequency)
-  // to the final relevance scoring. Please see GetFinalRelevancyScore()
-  // for more details and scoring method.
-  static std::vector<ScoreMaxRelevance>* hqp_relevance_buckets_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScoredHistoryMatchBuilderImpl);
-};
-
-#endif  // CHROME_BROWSER_AUTOCOMPLETE_SCORED_HISTORY_MATCH_BUILDER_IMPL_H_