Add calculation of derived features for distillable page model

components/dom_distiller.gypi

 # Copyright 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.
 
 {
   'conditions': [
     ['android_webview_build == 0', {
       'targets': [
         {
           # GN version: //components/dom_distiller/webui
@@ skipping 24 matching lines @@
         {
           # GN version: //components/dom_distiller/core
           'target_name': 'dom_distiller_core',
           'type': 'static_library',
           'dependencies': [
             '../base/base.gyp:base',
             '../base/base.gyp:base_prefs',
             '../skia/skia.gyp:skia',
             '../sync/sync.gyp:sync',
             '../third_party/dom_distiller_js/dom_distiller_js.gyp:dom_distiller_js_proto',
+            '../third_party/re2/re2.gyp:re2',
             'components.gyp:leveldb_proto',
             'components_resources.gyp:components_resources',
             'components_strings.gyp:components_strings',
             'distilled_page_proto',
             'pref_registry',
           ],
           'include_dirs': [
             '..',
           ],
           'export_dependent_settings': [
@@ skipping 28 matching lines @@
             'dom_distiller/core/dom_distiller_observer.h',
             'dom_distiller/core/dom_distiller_service.cc',
             'dom_distiller/core/dom_distiller_service.h',
             'dom_distiller/core/dom_distiller_service_android.cc',
             'dom_distiller/core/dom_distiller_service_android.h',
             'dom_distiller/core/dom_distiller_store.cc',
             'dom_distiller/core/dom_distiller_store.h',
             'dom_distiller/core/feedback_reporter.cc',
             'dom_distiller/core/feedback_reporter.h',
             'dom_distiller/core/font_family_list.h',
+            'dom_distiller/core/page_features.cc',
+            'dom_distiller/core/page_features.h',
             'dom_distiller/core/task_tracker.cc',
             'dom_distiller/core/task_tracker.h',
             'dom_distiller/core/theme_list.h',
             'dom_distiller/core/url_constants.cc',
             'dom_distiller/core/url_constants.h',
             'dom_distiller/core/url_utils.cc',
             'dom_distiller/core/url_utils.h',
             'dom_distiller/core/url_utils_android.cc',
             'dom_distiller/core/url_utils_android.h',
             'dom_distiller/core/viewer.cc',
@@ skipping 155 matching lines @@
                 'template_deps': ['dom_distiller/core/theme_list.h'],
               },
               'includes': [ '../build/android/java_cpp_template.gypi' ],
             },
           ],
         }],
       ],
     }],
   ],
 }