Move base::FreeDeleter into its own header.

ui/gfx/win/physical_size.cc

 // Copyright 2016 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 "ui/gfx/win/physical_size.h"
 
 #include <windows.h>
 #include <setupapi.h>
 
 #include <iostream>
 
 #include "base/logging.h"
+#include "base/memory/free_deleter.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/scoped_generic.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/registry.h"
 
 // This GUID {E6F07B5F-EE97-4A90-B076-33F57BF4EAA7} was taken from
 // https://msdn.microsoft.com/en-us/library/windows/hardware/ff545901.aspx
 const GUID GUID_DEVICEINTERFACE_MONITOR = {
     0xE6F07B5F,
     0xEE97,
@@ skipping 130 matching lines @@
           }
           break;
         }
       }
     }
   }
   return out;
 }
 
 }  // namespace gfx