Only Register() platform specific content settings types on different platforms

components/content_settings/core/browser/content_settings_registry.h

 // 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.
 
 #ifndef COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_REGISTRY_H_
 #define COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_REGISTRY_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 36 matching lines @@
  private:
   friend class ContentSettingsRegistryTest;
   friend struct base::DefaultLazyInstanceTraits<ContentSettingsRegistry>;
 
   ContentSettingsRegistry();
   ContentSettingsRegistry(WebsiteSettingsRegistry* website_settings_registry);
   ~ContentSettingsRegistry();
 
   void Init();
 
+  typedef uint32_t Platforms;
+
   // Register a new content setting. This maps an origin to an ALLOW/ASK/BLOCK
   // value (see the ContentSetting enum).
   void Register(ContentSettingsType type,
                 const std::string& name,
                 ContentSetting initial_default_value,
                 WebsiteSettingsInfo::SyncStatus sync_status,
                 const std::vector<std::string>& whitelisted_schemes,
                 const std::set<ContentSetting>& valid_settings,
                 WebsiteSettingsInfo::ScopingType scoping_type,
+                Platforms platforms,
                 ContentSettingsInfo::IncognitoBehavior incognito_behavior);
 
   Map content_settings_info_;
   WebsiteSettingsRegistry* website_settings_registry_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentSettingsRegistry);
 };
 
 }  // namespace content_settings
 
 #endif  // COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_REGISTRY_H_