Componentize InMemoryURLIndexTypes

chrome/browser/autocomplete/in_memory_url_index_types.cc

Index: chrome/browser/autocomplete/in_memory_url_index_types.cc
diff --git a/chrome/browser/autocomplete/in_memory_url_index_types.cc b/chrome/browser/autocomplete/in_memory_url_index_types.cc
deleted file mode 100644
index e0f8b82ad279c278e82e2e03ea64218493ba012a..0000000000000000000000000000000000000000
--- a/chrome/browser/autocomplete/in_memory_url_index_types.cc
+++ /dev/null
@@ -1,165 +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.
-
-#include "chrome/browser/autocomplete/in_memory_url_index_types.h"
-
-#include <algorithm>
-#include <functional>
-#include <iterator>
-#include <numeric>
-#include <set>
-
-#include "base/i18n/break_iterator.h"
-#include "base/i18n/case_conversion.h"
-#include "base/strings/string_util.h"
-#include "net/base/escape.h"
-#include "net/base/net_util.h"
-
-namespace {
-// The maximum number of characters to consider from an URL and page title
-// while matching user-typed terms.
-const size_t kMaxSignificantChars = 200;
-}
-
-// Matches within URL and Title Strings ----------------------------------------
-
-TermMatches MatchTermInString(const base::string16& term,
-                              const base::string16& cleaned_string,
-                              int term_num) {
-  const size_t kMaxCompareLength = 2048;
-  const base::string16& short_string =
-      (cleaned_string.length() > kMaxCompareLength) ?
-      cleaned_string.substr(0, kMaxCompareLength) : cleaned_string;
-  TermMatches matches;
-  for (size_t location = short_string.find(term);
-       location != base::string16::npos;
-       location = short_string.find(term, location + 1))
-    matches.push_back(TermMatch(term_num, location, term.length()));
-  return matches;
-}
-
-// Comparison function for sorting TermMatches by their offsets.
-bool MatchOffsetLess(const TermMatch& m1, const TermMatch& m2) {
-  return m1.offset < m2.offset;
-}
-
-TermMatches SortAndDeoverlapMatches(const TermMatches& matches) {
-  if (matches.empty())
-    return matches;
-  TermMatches sorted_matches = matches;
-  std::sort(sorted_matches.begin(), sorted_matches.end(), MatchOffsetLess);
-  TermMatches clean_matches;
-  TermMatch last_match;
-  for (TermMatches::const_iterator iter = sorted_matches.begin();
-       iter != sorted_matches.end(); ++iter) {
-    if (iter->offset >= last_match.offset + last_match.length) {
-      last_match = *iter;
-      clean_matches.push_back(last_match);
-    }
-  }
-  return clean_matches;
-}
-
-std::vector<size_t> OffsetsFromTermMatches(const TermMatches& matches) {
-  std::vector<size_t> offsets;
-  for (TermMatches::const_iterator i = matches.begin(); i != matches.end();
-       ++i) {
-    offsets.push_back(i->offset);
-    offsets.push_back(i->offset + i->length);
-  }
-  return offsets;
-}
-
-TermMatches ReplaceOffsetsInTermMatches(const TermMatches& matches,
-                                        const std::vector<size_t>& offsets) {
-  DCHECK_EQ(2 * matches.size(), offsets.size());
-  TermMatches new_matches;
-  std::vector<size_t>::const_iterator offset_iter = offsets.begin();
-  for (TermMatches::const_iterator term_iter = matches.begin();
-       term_iter != matches.end(); ++term_iter, ++offset_iter) {
-    const size_t starting_offset = *offset_iter;
-    ++offset_iter;
-    const size_t ending_offset = *offset_iter;
-    if ((starting_offset != base::string16::npos) &&
-        (ending_offset != base::string16::npos) &&
-        (starting_offset != ending_offset)) {
-      TermMatch new_match(*term_iter);
-      new_match.offset = starting_offset;
-      new_match.length = ending_offset - starting_offset;
-      new_matches.push_back(new_match);
-    }
-  }
-  return new_matches;
-}
-
-// Utility Functions -----------------------------------------------------------
-
-String16Set String16SetFromString16(const base::string16& cleaned_uni_string,
-                                    WordStarts* word_starts) {
-  String16Vector words =
-      String16VectorFromString16(cleaned_uni_string, false, word_starts);
-  String16Set word_set;
-  for (String16Vector::const_iterator iter = words.begin(); iter != words.end();
-       ++iter)
-    word_set.insert(base::i18n::ToLower(*iter).substr(0, kMaxSignificantChars));
-  return word_set;
-}
-
-String16Vector String16VectorFromString16(
-    const base::string16& cleaned_uni_string,
-    bool break_on_space,
-    WordStarts* word_starts) {
-  if (word_starts)
-    word_starts->clear();
-  base::i18n::BreakIterator iter(cleaned_uni_string,
-      break_on_space ? base::i18n::BreakIterator::BREAK_SPACE :
-          base::i18n::BreakIterator::BREAK_WORD);
-  String16Vector words;
-  if (!iter.Init())
-    return words;
-  while (iter.Advance()) {
-    if (break_on_space || iter.IsWord()) {
-      base::string16 word(iter.GetString());
-      size_t initial_whitespace = 0;
-      if (break_on_space) {
-        base::string16 trimmed_word;
-        base::TrimWhitespace(word, base::TRIM_LEADING, &trimmed_word);
-        initial_whitespace = word.length() - trimmed_word.length();
-        base::TrimWhitespace(trimmed_word, base::TRIM_TRAILING, &word);
-      }
-      if (word.empty())
-        continue;
-      words.push_back(word);
-      if (!word_starts)
-        continue;
-      size_t word_start = iter.prev() + initial_whitespace;
-      if (word_start < kMaxSignificantChars)
-        word_starts->push_back(word_start);
-    }
-  }
-  return words;
-}
-
-Char16Set Char16SetFromString16(const base::string16& term) {
-  Char16Set characters;
-  for (base::string16::const_iterator iter = term.begin(); iter != term.end();
-       ++iter)
-    characters.insert(*iter);
-  return characters;
-}
-
-// HistoryInfoMapValue ---------------------------------------------------------
-
-HistoryInfoMapValue::HistoryInfoMapValue() {}
-HistoryInfoMapValue::~HistoryInfoMapValue() {}
-
-// RowWordStarts ---------------------------------------------------------------
-
-RowWordStarts::RowWordStarts() {}
-RowWordStarts::~RowWordStarts() {}
-
-void RowWordStarts::Clear() {
-  url_word_starts_.clear();
-  title_word_starts_.clear();
-}