Cleanup: Remove unneeded headers from app/

chrome/browser/history/text_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 <limits>
 #include <set>
 #include <string>
 
 #include "chrome/browser/history/text_database.h"
 
-#include "app/sql/connection.h"
 #include "app/sql/statement.h"
 #include "app/sql/transaction.h"
 #include "base/file_util.h"
 #include "base/histogram.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/diagnostics/sqlite_diagnostics.h"
 
 // There are two tables in each database, one full-text search (FTS) table which
@@ skipping 347 matching lines @@
   } else {
     // Since we got the results in order, we know the last item is the last
     // time we considered.
     *first_time_searched = results->back().time;
   }
 
   statement.Reset();
 }
 
 }  // namespace history