| // 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. |
| |
| #ifndef CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_ |
| #define CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/supports_user_data.h" |
| #include "build/build_config.h" |
| #include "content/common/content_export.h" |
| |
| class GURL; |
| |
| namespace net { |
| class ClientCertStore; |
| class HostResolver; |
| class KeygenHandler; |
| class URLRequestContext; |
| } |
| |
| namespace content { |
| |
| class AppCacheService; |
| |
| // ResourceContext contains the relevant context information required for |
| // resource loading. It lives on the IO thread, although it is constructed on |
| // the UI thread. It must be destructed on the IO thread. |
| class CONTENT_EXPORT ResourceContext : public base::SupportsUserData { |
| public: |
| ResourceContext(); |
| ~ResourceContext() override; |
| virtual net::HostResolver* GetHostResolver() = 0; |
| |
| // DEPRECATED: This is no longer a valid given isolated apps/sites and |
| // storage partitioning. This getter returns the default context associated |
| // with a BrowsingContext. |
| virtual net::URLRequestContext* GetRequestContext() = 0; |
| |
| // Get platform ClientCertStore. May return nullptr. |
| virtual std::unique_ptr<net::ClientCertStore> CreateClientCertStore(); |
| |
| // Create a platform KeygenHandler and pass it to |callback|. The |callback| |
| // may be run synchronously. |
| virtual void CreateKeygenHandler( |
| uint32_t key_size_in_bits, |
| const std::string& challenge_string, |
| const GURL& url, |
| const base::Callback<void(std::unique_ptr<net::KeygenHandler>)>& |
| callback); |
| |
| // Returns a callback that can be invoked to get a random salt |
| // string that is used for creating media device IDs. The salt |
| // should be stored in the current user profile and should be reset |
| // if cookies are cleared. The default is an empty string. |
| // |
| // It is safe to hold on to the callback returned and use it without |
| // regard to the lifetime of ResourceContext, although in general |
| // you should not use it long after the profile has been destroyed. |
| // |
| // TODO(joi): We don't think it should be unnecessary to use this |
| // after ResourceContext goes away. There is likely an underying bug |
| // in the lifetime of ProfileIOData vs. ResourceProcessHost, where |
| // sometimes ProfileIOData has gone away before RPH has finished |
| // being torn down (on the IO thread). The current interface that |
| // allows using the salt object after ResourceContext has gone away |
| // was put in place to fix http://crbug.com/341211 but I intend to |
| // try to figure out how the lifetime should be fixed properly. The |
| // original interface was just a method that returns a string. |
| // |
| // TODO(perkj): Make this method pure virtual when crbug/315022 is |
| // fixed. |
| typedef base::Callback<std::string()> SaltCallback; |
| virtual SaltCallback GetMediaDeviceIDSalt(); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_ |