Componentize URLDatabase

components/history/core/browser/url_row.cc

Index: components/history/core/browser/url_row.cc
diff --git a/chrome/browser/history/history_types.cc b/components/history/core/browser/url_row.cc
similarity index 17%
copy from chrome/browser/history/history_types.cc
copy to components/history/core/browser/url_row.cc
index c0d4cbf21e3cc2b875230a1cd089ef31e7bbc42d..1f484c88c2bc8422ec40943bbe3faf17e75653d2 100644
--- a/chrome/browser/history/history_types.cc
+++ b/components/history/core/browser/url_row.cc
@@ -1,19 +1,13 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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.
 
-#include "chrome/browser/history/history_types.h"
+#include "components/history/core/browser/url_row.h"
 
-#include <limits>
-
-#include "base/logging.h"
-#include "base/stl_util.h"
-#include "chrome/browser/history/page_usage_data.h"
+#include <algorithm>
 
 namespace history {
 
-// URLRow ----------------------------------------------------------------------
-
 URLRow::URLRow() {
   Initialize();
 }
@@ -62,33 +56,6 @@ void URLRow::Initialize() {
   hidden_ = false;
 }
 
-// VisitRow --------------------------------------------------------------------
-
-VisitRow::VisitRow()
-    : visit_id(0),
-      url_id(0),
-      referring_visit(0),
-      transition(content::PAGE_TRANSITION_LINK),
-      segment_id(0) {
-}
-
-VisitRow::VisitRow(URLID arg_url_id,
-                   base::Time arg_visit_time,
-                   VisitID arg_referring_visit,
-                   content::PageTransition arg_transition,
-                   SegmentID arg_segment_id)
-    : visit_id(0),
-      url_id(arg_url_id),
-      visit_time(arg_visit_time),
-      referring_visit(arg_referring_visit),
-      transition(arg_transition),
-      segment_id(arg_segment_id) {
-}
-
-VisitRow::~VisitRow() {
-}
-
-// URLResult -------------------------------------------------------------------
 
 URLResult::URLResult()
     : blocked_visit_(false) {
@@ -126,319 +93,4 @@ bool URLResult::CompareVisitTime(const URLResult& lhs, const URLResult& rhs) {
   return lhs.visit_time() > rhs.visit_time();
 }
 
-// QueryResults ----------------------------------------------------------------
-
-QueryResults::QueryResults() : reached_beginning_(false) {
-}
-
-QueryResults::~QueryResults() {}
-
-const size_t* QueryResults::MatchesForURL(const GURL& url,
-                                          size_t* num_matches) const {
-  URLToResultIndices::const_iterator found = url_to_results_.find(url);
-  if (found == url_to_results_.end()) {
-    if (num_matches)
-      *num_matches = 0;
-    return NULL;
-  }
-
-  // All entries in the map should have at least one index, otherwise it
-  // shouldn't be in the map.
-  DCHECK(!found->second->empty());
-  if (num_matches)
-    *num_matches = found->second->size();
-  return &found->second->front();
-}
-
-void QueryResults::Swap(QueryResults* other) {
-  std::swap(first_time_searched_, other->first_time_searched_);
-  std::swap(reached_beginning_, other->reached_beginning_);
-  results_.swap(other->results_);
-  url_to_results_.swap(other->url_to_results_);
-}
-
-void QueryResults::AppendURLBySwapping(URLResult* result) {
-  URLResult* new_result = new URLResult;
-  new_result->SwapResult(result);
-
-  results_.push_back(new_result);
-  AddURLUsageAtIndex(new_result->url(), results_.size() - 1);
-}
-
-void QueryResults::DeleteURL(const GURL& url) {
-  // Delete all instances of this URL. We re-query each time since each
-  // mutation will cause the indices to change.
-  while (const size_t* match_indices = MatchesForURL(url, NULL))
-    DeleteRange(*match_indices, *match_indices);
-}
-
-void QueryResults::DeleteRange(size_t begin, size_t end) {
-  DCHECK(begin <= end && begin < size() && end < size());
-
-  // First delete the pointers in the given range and store all the URLs that
-  // were modified. We will delete references to these later.
-  std::set<GURL> urls_modified;
-  for (size_t i = begin; i <= end; i++) {
-    urls_modified.insert(results_[i]->url());
-  }
-
-  // Now just delete that range in the vector en masse (the STL ending is
-  // exclusive, while ours is inclusive, hence the +1).
-  results_.erase(results_.begin() + begin, results_.begin() + end + 1);
-
-  // Delete the indicies referencing the deleted entries.
-  for (std::set<GURL>::const_iterator url = urls_modified.begin();
-       url != urls_modified.end(); ++url) {
-    URLToResultIndices::iterator found = url_to_results_.find(*url);
-    if (found == url_to_results_.end()) {
-      NOTREACHED();
-      continue;
-    }
-
-    // Need a signed loop type since we do -- which may take us to -1.
-    for (int match = 0; match < static_cast<int>(found->second->size());
-         match++) {
-      if (found->second[match] >= begin && found->second[match] <= end) {
-        // Remove this referece from the list.
-        found->second->erase(found->second->begin() + match);
-        match--;
-      }
-    }
-
-    // Clear out an empty lists if we just made one.
-    if (found->second->empty())
-      url_to_results_.erase(found);
-  }
-
-  // Shift all other indices over to account for the removed ones.
-  AdjustResultMap(end + 1, std::numeric_limits<size_t>::max(),
-                  -static_cast<ptrdiff_t>(end - begin + 1));
-}
-
-void QueryResults::AddURLUsageAtIndex(const GURL& url, size_t index) {
-  URLToResultIndices::iterator found = url_to_results_.find(url);
-  if (found != url_to_results_.end()) {
-    // The URL is already in the list, so we can just append the new index.
-    found->second->push_back(index);
-    return;
-  }
-
-  // Need to add a new entry for this URL.
-  base::StackVector<size_t, 4> new_list;
-  new_list->push_back(index);
-  url_to_results_[url] = new_list;
-}
-
-void QueryResults::AdjustResultMap(size_t begin, size_t end, ptrdiff_t delta) {
-  for (URLToResultIndices::iterator i = url_to_results_.begin();
-       i != url_to_results_.end(); ++i) {
-    for (size_t match = 0; match < i->second->size(); match++) {
-      size_t match_index = i->second[match];
-      if (match_index >= begin && match_index <= end)
-        i->second[match] += delta;
-    }
-  }
-}
-
-// QueryOptions ----------------------------------------------------------------
-
-QueryOptions::QueryOptions()
-    : max_count(0),
-      duplicate_policy(QueryOptions::REMOVE_ALL_DUPLICATES) {
-}
-
-void QueryOptions::SetRecentDayRange(int days_ago) {
-  end_time = base::Time::Now();
-  begin_time = end_time - base::TimeDelta::FromDays(days_ago);
-}
-
-int64 QueryOptions::EffectiveBeginTime() const {
-  return begin_time.ToInternalValue();
-}
-
-int64 QueryOptions::EffectiveEndTime() const {
-  return end_time.is_null() ?
-      std::numeric_limits<int64>::max() : end_time.ToInternalValue();
-}
-
-int QueryOptions::EffectiveMaxCount() const {
-  return max_count ? max_count : std::numeric_limits<int>::max();
-}
-
-// QueryURLResult -------------------------------------------------------------
-
-QueryURLResult::QueryURLResult() : success(false) {
-}
-
-QueryURLResult::~QueryURLResult() {
-}
-
-// KeywordSearchTermVisit -----------------------------------------------------
-
-KeywordSearchTermVisit::KeywordSearchTermVisit() : visits(0) {}
-
-KeywordSearchTermVisit::~KeywordSearchTermVisit() {}
-
-// KeywordSearchTermRow --------------------------------------------------------
-
-KeywordSearchTermRow::KeywordSearchTermRow() : keyword_id(0), url_id(0) {}
-
-KeywordSearchTermRow::~KeywordSearchTermRow() {}
-
-// MostVisitedURL --------------------------------------------------------------
-
-MostVisitedURL::MostVisitedURL() {}
-
-MostVisitedURL::MostVisitedURL(const GURL& url,
-                               const base::string16& title)
-    : url(url),
-      title(title) {
-}
-
-MostVisitedURL::MostVisitedURL(const GURL& url,
-                               const base::string16& title,
-                               const base::Time& last_forced_time)
-    : url(url),
-      title(title),
-      last_forced_time(last_forced_time) {
-}
-
-MostVisitedURL::~MostVisitedURL() {}
-
-// FilteredURL -----------------------------------------------------------------
-
-FilteredURL::FilteredURL() : score(0.0) {}
-
-FilteredURL::FilteredURL(const PageUsageData& page_data)
-    : url(page_data.GetURL()),
-      title(page_data.GetTitle()),
-      score(page_data.GetScore()) {
-}
-
-FilteredURL::~FilteredURL() {}
-
-// FilteredURL::ExtendedInfo ---------------------------------------------------
-
-FilteredURL::ExtendedInfo::ExtendedInfo()
-    : total_visits(0),
-      visits(0),
-      duration_opened(0) {
-}
-
-// Images ---------------------------------------------------------------------
-
-Images::Images() {}
-
-Images::~Images() {}
-
-// TopSitesDelta --------------------------------------------------------------
-
-TopSitesDelta::TopSitesDelta() {}
-
-TopSitesDelta::~TopSitesDelta() {}
-
-// HistoryAddPageArgs ---------------------------------------------------------
-
-HistoryAddPageArgs::HistoryAddPageArgs()
-    : context_id(NULL),
-      page_id(0),
-      transition(content::PAGE_TRANSITION_LINK),
-      visit_source(SOURCE_BROWSED),
-      did_replace_entry(false) {}
-
-HistoryAddPageArgs::HistoryAddPageArgs(
-    const GURL& url,
-    base::Time time,
-    ContextID context_id,
-    int32 page_id,
-    const GURL& referrer,
-    const history::RedirectList& redirects,
-    content::PageTransition transition,
-    VisitSource source,
-    bool did_replace_entry)
-      : url(url),
-        time(time),
-        context_id(context_id),
-        page_id(page_id),
-        referrer(referrer),
-        redirects(redirects),
-        transition(transition),
-        visit_source(source),
-        did_replace_entry(did_replace_entry) {
-}
-
-HistoryAddPageArgs::~HistoryAddPageArgs() {}
-
-ThumbnailMigration::ThumbnailMigration() {}
-
-ThumbnailMigration::~ThumbnailMigration() {}
-
-MostVisitedThumbnails::MostVisitedThumbnails() {}
-
-MostVisitedThumbnails::~MostVisitedThumbnails() {}
-
-// Autocomplete thresholds -----------------------------------------------------
-
-const int kLowQualityMatchTypedLimit = 1;
-const int kLowQualityMatchVisitLimit = 4;
-const int kLowQualityMatchAgeLimitInDays = 3;
-
-base::Time AutocompleteAgeThreshold() {
-  return (base::Time::Now() -
-          base::TimeDelta::FromDays(kLowQualityMatchAgeLimitInDays));
-}
-
-bool RowQualifiesAsSignificant(const URLRow& row,
-                               const base::Time& threshold) {
-  const base::Time& real_threshold =
-      threshold.is_null() ? AutocompleteAgeThreshold() : threshold;
-  return (row.typed_count() >= kLowQualityMatchTypedLimit) ||
-         (row.visit_count() >= kLowQualityMatchVisitLimit) ||
-         (row.last_visit() >= real_threshold);
-}
-
-// IconMapping ----------------------------------------------------------------
-
-IconMapping::IconMapping()
-    : mapping_id(0), icon_id(0), icon_type(favicon_base::INVALID_ICON) {}
-
-IconMapping::~IconMapping() {}
-
-// FaviconBitmapIDSize ---------------------------------------------------------
-
-FaviconBitmapIDSize::FaviconBitmapIDSize()
-    : bitmap_id(0) {
-}
-
-FaviconBitmapIDSize::~FaviconBitmapIDSize() {
-}
-
-// FaviconBitmap --------------------------------------------------------------
-
-FaviconBitmap::FaviconBitmap()
-    : bitmap_id(0),
-      icon_id(0) {
-}
-
-FaviconBitmap::~FaviconBitmap() {
-}
-
-// VisitDatabaseObserver -------------------------------------------------------
-
-VisitDatabaseObserver::~VisitDatabaseObserver() {}
-
-ExpireHistoryArgs::ExpireHistoryArgs() {
-}
-
-ExpireHistoryArgs::~ExpireHistoryArgs() {
-}
-
-void ExpireHistoryArgs::SetTimeRangeForOneDay(base::Time time) {
-  begin_time = time.LocalMidnight();
-
-  // Due to DST, leap seconds, etc., the next day at midnight may be more than
-  // 24 hours away, so add 36 hours and round back down to midnight.
-  end_time = (begin_time + base::TimeDelta::FromHours(36)).LocalMidnight();
-}
-
 }  // namespace history