Move error classification into the ssl_errors component

components/ssl_errors.gypi

 # Copyright 2015 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.
 
 {
   'targets': [
     {
       # GN version: //components/ssl_errors
       'target_name': 'ssl_errors',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base_i18n',
         '../net/net.gyp:net',
         '../ui/base/ui_base.gyp:ui_base',
         'components_strings.gyp:components_strings',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         # Note: sources list duplicated in GN build.
+        'ssl_errors/error_classification.cc',
+        'ssl_errors/error_classification.h',
         'ssl_errors/error_info.cc',
         'ssl_errors/error_info.h',
       ]
     }
   ]
 }