Cleanup: Remove unneeded includes of chrome_switches.h.

chrome/browser/history/thumbnail_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/thumbnail_database.h"
 
+#include <algorithm>
+#include <string>
+
 #include "app/sql/statement.h"
 #include "app/sql/transaction.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/ref_counted_memory.h"
 #include "base/time.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/diagnostics/sqlite_diagnostics.h"
 #include "chrome/browser/history/history_publisher.h"
 #include "chrome/browser/history/top_sites.h"
 #include "chrome/browser/history/url_database.h"
-#include "chrome/common/chrome_switches.h"
 #include "chrome/common/thumbnail_score.h"
 #include "gfx/codec/jpeg_codec.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
 #endif
 
 namespace history {
 
@@ skipping 511 matching lines @@
 
   InitFavIconsIndex();
 
   // Reopen the transaction.
   BeginTransaction();
   use_top_sites_ = true;
   return true;
 }
 
 }  // namespace history