Add GN build file for third_party hunspell library.

google/bdict_writer.cc

 // Copyright (c) 2011 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 "third_party/hunspell/google/bdict_writer.h"
 
 #include "base/logging.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "third_party/hunspell/google/bdict.h"
 
 namespace hunspell {
 
 // Represents one node the word trie in memory. This does not have to be very
 // efficient since it is only used when building.
 class DicNode {
  public:
   enum StorageType {
     UNDEFINED,  // Uninitialized storage type.
@@ skipping 484 matching lines @@
   // Add the header now that we know the offsets.
   hunspell::BDict::AffHeader* header =
       reinterpret_cast<hunspell::BDict::AffHeader*>(&(*output)[header_offset]);
   header->affix_group_offset = static_cast<uint32>(affix_group_offset);
   header->affix_rule_offset = static_cast<uint32>(affix_rule_offset);
   header->rep_offset = static_cast<uint32>(rep_offset);
   header->other_offset = static_cast<uint32>(other_offset);
 }
 
 }  // namespace hunspell