[subresource_filter] Implement the "Smart" UI on Android

components/content_settings/core/common/content_settings.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 "components/content_settings/core/common/content_settings.h"
 
 #include "base/containers/hash_tables.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/stl_util.h"
 #include "build/build_config.h"
 
 ContentSetting IntToContentSetting(int content_setting) {
   return ((content_setting < 0) ||
           (content_setting >= CONTENT_SETTING_NUM_SETTINGS)) ?
       CONTENT_SETTING_DEFAULT : static_cast<ContentSetting>(content_setting);
 }
 
 // WARNING: This array should not be reordered or removed as it is used for
 // histogram values. If a ContentSettingsType value has been removed, the entry
 // must be replaced by a placeholder. It should correspond directly to the
 // ContentType enum in histograms.xml.
 // TODO(raymes): We should use a sparse histogram here on the hash of the
 // content settings type name instead.
+// TODO(raymes): This has become out of sync with histograms.xml. See
+// crbug.com/697234.
 ContentSettingsType kHistogramOrder[] = {
     CONTENT_SETTINGS_TYPE_COOKIES,
     CONTENT_SETTINGS_TYPE_IMAGES,
     CONTENT_SETTINGS_TYPE_JAVASCRIPT,
     CONTENT_SETTINGS_TYPE_PLUGINS,
     CONTENT_SETTINGS_TYPE_POPUPS,
     CONTENT_SETTINGS_TYPE_GEOLOCATION,
     CONTENT_SETTINGS_TYPE_NOTIFICATIONS,
     CONTENT_SETTINGS_TYPE_AUTO_SELECT_CERTIFICATE,
     CONTENT_SETTINGS_TYPE_DEFAULT,  // FULLSCREEN (removed).
@@ skipping 18 matching lines @@
     CONTENT_SETTINGS_TYPE_SITE_ENGAGEMENT,
     CONTENT_SETTINGS_TYPE_DURABLE_STORAGE,
     CONTENT_SETTINGS_TYPE_DEFAULT,  // KEYGEN (removed).
     CONTENT_SETTINGS_TYPE_BLUETOOTH_GUARD,
     CONTENT_SETTINGS_TYPE_BACKGROUND_SYNC,
     CONTENT_SETTINGS_TYPE_AUTOPLAY,
     CONTENT_SETTINGS_TYPE_DEFAULT,  // PROMPT_NO_DECISION_COUNT (migrated).
     CONTENT_SETTINGS_TYPE_IMPORTANT_SITE_INFO,
     CONTENT_SETTINGS_TYPE_PERMISSION_AUTOBLOCKER_DATA,
     CONTENT_SETTINGS_TYPE_SUBRESOURCE_FILTER,
+    CONTENT_SETTINGS_TYPE_SUBRESOURCE_FILTER_DATA,

[raymes, 2017/04/12 22:35:15]

Could you please omit this for now until I've landed
https://codereview.chromium.org/2728303002/ ? I can add it afterwards.

[Charlie Harrison, 2017/04/13 03:41:30]

Done.

 };
 
 int ContentSettingTypeToHistogramValue(ContentSettingsType content_setting,
                                        size_t* num_values) {
   // Translate the list above into a map for fast lookup.
   typedef base::hash_map<int, int> Map;
   CR_DEFINE_STATIC_LOCAL(Map, kMap, ());
   if (kMap.empty()) {
     for (size_t i = 0; i < arraysize(kHistogramOrder); ++i) {
       if (kHistogramOrder[i] != CONTENT_SETTINGS_TYPE_DEFAULT)
@@ skipping 21 matching lines @@
 ContentSettingPatternSource::ContentSettingPatternSource()
     : setting(CONTENT_SETTING_DEFAULT), incognito(false) {
 }
 
 ContentSettingPatternSource::ContentSettingPatternSource(
     const ContentSettingPatternSource& other) = default;
 
 RendererContentSettingRules::RendererContentSettingRules() {}
 
 RendererContentSettingRules::~RendererContentSettingRules() {}