components/keyed_service/ios/browser_state_helper.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_KEYED_SERVICE_IOS_BROWSER_STATE_HELPER_H_
   6 #define COMPONENTS_KEYED_SERVICE_IOS_BROWSER_STATE_HELPER_H_
   7
   8 namespace base {
   9 class SupportsUserData;
  10 }
  11
  12 namespace web {
  13 class BrowserState;
  14 }
  15
  16 // TODO(sdefresne): remove this file and all usage of the methods once iOS code
  17 // only use BrowserStateKeyedServiceFactory, http://crbug.com/419366
  18
  19 // |BrowserStateFromContextFn| converts from a base::SupportsUserData as passed
  20 // to a (Refcounted)?BrowserStateKeyedServiceFactory to a web::BrowserState.
  21 using BrowserStateFromContextFn =
  22     web::BrowserState* (*)(base::SupportsUserData*);
  23
  24 // Registers an helper function to convert a |context| to a web::BrowserState
  25 // to allow the embedder to overrides how the BSKSF does the conversion.
  26 void SetBrowserStateFromContextHelper(BrowserStateFromContextFn helper);
  27
  28 // Converts a |context| to a web::BrowserState using the helper registered by
  29 // the embedder if any. Usage is restricted to //components/keyed_service/ios.
  30 web::BrowserState* BrowserStateFromContext(base::SupportsUserData* context);
  31
  32 #endif  // COMPONENTS_KEYED_SERVICE_IOS_BROWSER_STATE_HELPER_H_