Patch 3: Added files for platform-based spellcheck.

chrome/chrome_renderer.gypi

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chrome_renderer_sources': [
       'renderer/banners/app_banner_client.cc',
       'renderer/banners/app_banner_client.h',
       'renderer/benchmarking_extension.cc',
@@ skipping 202 matching lines @@
       'renderer/safe_browsing/scorer.cc',
       'renderer/safe_browsing/scorer.h',
     ],
     'chrome_renderer_spellchecker_sources': [
       'renderer/spellchecker/cocoa_spelling_engine_mac.cc',
       'renderer/spellchecker/cocoa_spelling_engine_mac.h',
       'renderer/spellchecker/custom_dictionary_engine.cc',
       'renderer/spellchecker/custom_dictionary_engine.h',
       'renderer/spellchecker/hunspell_engine.cc',
       'renderer/spellchecker/hunspell_engine.h',
+      'renderer/spellchecker/platform_engine.cc',
+      'renderer/spellchecker/platform_engine.h',
       'renderer/spellchecker/spellcheck.cc',
       'renderer/spellchecker/spellcheck.h',
       'renderer/spellchecker/spellcheck_language.cc',
       'renderer/spellchecker/spellcheck_language.h',
       'renderer/spellchecker/spellcheck_provider.cc',
       'renderer/spellchecker/spellcheck_provider.h',
       'renderer/spellchecker/spellcheck_worditerator.cc',
       'renderer/spellchecker/spellcheck_worditerator.h',
       'renderer/spellchecker/spelling_engine.h',
     ],
@@ skipping 157 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }