Try to cut down Browser/TabContents header dependencies.

chrome/browser/history/visit_database.cc

 // Copyright (c) 2009 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/visit_database.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <set>
 
 #include "app/sql/connection.h"
 #include "app/sql/statement.h"
+#include "base/logging.h"
 #include "chrome/browser/history/url_database.h"
 #include "chrome/common/page_transition_types.h"
 #include "chrome/common/url_constants.h"
 
 // Rows, in order, of the visit table.
 #define HISTORY_VISIT_ROW_FIELDS \
   " id,url,visit_time,from_visit,transition,segment_id,is_indexed "
 
 namespace history {
 
@@ skipping 406 matching lines @@
       "SELECT MIN(visit_time) FROM visits WHERE visit_time != 0"));
   if (!statement || !statement.Step() || statement.ColumnInt64(0) == 0) {
     *first_visit = base::Time::Now();
     return false;
   }
   *first_visit = base::Time::FromInternalValue(statement.ColumnInt64(0));
   return true;
 }
 
 }  // namespace history