Revert of Allow std::unordered_*.

ash/display/display_info.cc

 // Copyright (c) 2013 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 "ash/display/display_info.h"
-
 #include <stdio.h>
-
-#include <algorithm>
 #include <string>
 #include <vector>
 
+#include "ash/display/display_info.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/geometry/size_f.h"
 
 #if defined(OS_WIN)
@@ skipping 426 matching lines @@
 
 void DisplayInfo::ClearInputDevices() {
   input_devices_.clear();
 }
 
 void ResetDisplayIdForTest() {
   synthesized_display_id = kSynthesizedDisplayIdStart;
 }
 
 }  // namespace ash