chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.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 CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_CHROME_SETTINGS_H_
   6 #define CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_CHROME_SETTINGS_H_
   7
   8 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h"
   9 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
  10 #include "components/keyed_service/core/keyed_service.h"
  11
  12 class PrefService;
  13
  14 namespace base {
  15 class SequencedTaskRunner;
  16 class SingleThreadTaskRunner;
  17 }
  18
  19 namespace data_reduction_proxy {
  20 class DataReductionProxyIOData;
  21 class DataStore;
  22 }
  23
  24 namespace net {
  25 class URLRequestContextGetter;
  26 }
  27
  28 class PrefService;
  29
  30 // Data reduction proxy settings class suitable for use with a Chrome browser.
  31 // It is keyed to a browser context.
  32 class DataReductionProxyChromeSettings
  33     : public data_reduction_proxy::DataReductionProxySettings,
  34       public KeyedService {
  35  public:
  36   // Enum values that can be reported for the
  37   // DataReductionProxy.ProxyPrefMigrationResult histogram. These values must be
  38   // kept in sync with their counterparts in histograms.xml. Visible here for
  39   // testing purposes.
  40   enum ProxyPrefMigrationResult {
  41     PROXY_PREF_NOT_CLEARED = 0,
  42     PROXY_PREF_CLEARED_EMPTY,
  43     PROXY_PREF_CLEARED_MODE_SYSTEM,
  44     PROXY_PREF_CLEARED_DRP,
  45     PROXY_PREF_CLEARED_GOOGLEZIP,
  46     PROXY_PREF_CLEARED_PAC_GOOGLEZIP,
  47     PROXY_PREF_MAX
  48   };
  49
  50   // Constructs a settings object. Construction and destruction must happen on
  51   // the UI thread.
  52   DataReductionProxyChromeSettings();
  53
  54   // Destructs the settings object.
  55   ~DataReductionProxyChromeSettings() override;
  56
  57   // Overrides KeyedService::Shutdown:
  58   void Shutdown() override;
  59
  60   // Initialize the settings object with the given io_data, prefs services,
  61   // request context getter, data store, ui task runner, and db task runner.
  62   void InitDataReductionProxySettings(
  63       data_reduction_proxy::DataReductionProxyIOData* io_data,
  64       PrefService* profile_prefs,
  65       net::URLRequestContextGetter* request_context_getter,
  66       scoped_ptr<data_reduction_proxy::DataStore> store,
  67       const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner,
  68       const scoped_refptr<base::SequencedTaskRunner>& db_task_runner);
  69
  70   // Gets the client type for the data reduction proxy.
  71   static data_reduction_proxy::Client GetClient();
  72
  73   // Public for testing.
  74   void MigrateDataReductionProxyOffProxyPrefs(PrefService* prefs);
  75
  76  private:
  77   // Helper method for migrating the Data Reduction Proxy away from using the
  78   // proxy pref. Returns the ProxyPrefMigrationResult value indicating the
  79   // migration action taken.
  80   ProxyPrefMigrationResult MigrateDataReductionProxyOffProxyPrefsHelper(
  81       PrefService* prefs);
  82
  83   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyChromeSettings);
  84 };
  85
  86 #endif  // CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_CHROME_SETTINGS_H_