Removes some dead database code

chrome/browser/history/history_backend.cc

 // 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/history/history_backend.h"
 
 #include <algorithm>
 #include <functional>
 #include <list>
 #include <map>
@@ skipping 1067 matching lines @@
     if (!segment_queried_) {
       segment_queried_ = true;
       base::MessageLoop::current()->PostTask(
           FROM_HERE,
           base::Bind(&HistoryBackend::DeleteOldSegmentData, this));
     }
   }
   request->ForwardResult(request->handle(), &request->value.get());
 }
 
-void HistoryBackend::IncreaseSegmentDuration(const GURL& url,
-                                             base::Time time,
-                                             base::TimeDelta delta) {
-  if (!db_)
-    return;
-
-  const std::string segment_name(VisitSegmentDatabase::ComputeSegmentName(url));
-  SegmentID segment_id = db_->GetSegmentNamed(segment_name);
-  if (!segment_id) {
-    URLID url_id = db_->GetRowForURL(url, NULL);
-    if (!url_id)
-      return;
-    segment_id = db_->CreateSegment(url_id, segment_name);
-    if (!segment_id)
-      return;
-  }
-  SegmentDurationID duration_id;
-  base::TimeDelta total_delta;
-  if (!db_->GetSegmentDuration(segment_id, time, &duration_id,
-                               &total_delta)) {
-    db_->CreateSegmentDuration(segment_id, time, delta);
-    return;
-  }
-  total_delta += delta;
-  db_->SetSegmentDuration(duration_id, total_delta);
-}
-
-void HistoryBackend::QuerySegmentDuration(
-    scoped_refptr<QuerySegmentUsageRequest> request,
-    const base::Time from_time,
-    int max_result_count) {
-  if (request->canceled())
-    return;
-
-  if (db_) {
-    db_->QuerySegmentDuration(from_time, max_result_count,
-                              &request->value.get());
-  }
-  request->ForwardResult(request->handle(), &request->value.get());
-}
-
 // Keyword visits --------------------------------------------------------------
 
 void HistoryBackend::SetKeywordSearchTermsForURL(const GURL& url,
                                                  TemplateURLID keyword_id,
                                                  const base::string16& term) {
   if (!db_)
     return;
 
   // Get the ID for this URL.
   URLID url_id = db_->GetRowForURL(url, NULL);
@@ skipping 1829 matching lines @@
   int rank = kPageVisitStatsMaxTopSites;
   std::map<GURL, int>::const_iterator it = most_visited_urls_map_.find(url);
   if (it != most_visited_urls_map_.end())
     rank = (*it).second;
   UMA_HISTOGRAM_ENUMERATION("History.TopSitesVisitsByRank",
                             rank, kPageVisitStatsMaxTopSites + 1);
 }
 #endif
 
 }  // namespace history