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      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_DOMAIN_RELIABILITY_SERVICE_H_
      6 #define COMPONENTS_DOMAIN_RELIABILITY_SERVICE_H_
      7 
      8 #include <string>
      9 
     10 #include "base/callback_forward.h"
     11 #include "base/macros.h"
     12 #include "base/memory/ref_counted.h"
     13 #include "base/memory/scoped_ptr.h"
     14 #include "base/sequenced_task_runner.h"
     15 #include "components/domain_reliability/clear_mode.h"
     16 #include "components/domain_reliability/domain_reliability_export.h"
     17 #include "components/keyed_service/core/keyed_service.h"
     18 
     19 namespace net {
     20 class URLRequestContextGetter;
     21 };
     22 
     23 namespace domain_reliability {
     24 
     25 class DomainReliabilityMonitor;
     26 
     27 // DomainReliabilityService is a KeyedService that manages a Monitor that lives
     28 // on another thread (as provided by the URLRequestContextGetter's task runner)
     29 // and proxies (selected) method calls to it. Destruction of the Monitor (on
     30 // that thread) is the responsibility of the caller.
     31 class DOMAIN_RELIABILITY_EXPORT DomainReliabilityService
     32     : public KeyedService {
     33  public:
     34   // Creates a DomainReliabilityService that will contain a Monitor with the
     35   // given upload reporter string.
     36   static DomainReliabilityService* Create(
     37       const std::string& upload_reporter_string);
     38 
     39   virtual ~DomainReliabilityService();
     40 
     41   // Initializes the Service: given the task runner on which Monitor methods
     42   // should be called, creates the Monitor and returns it. Can be called at
     43   // most once, and must be called before any of the below methods can be
     44   // called. The caller is responsible for destroying the Monitor on the given
     45   // task runner when it is no longer needed.
     46   virtual scoped_ptr<DomainReliabilityMonitor> Init(
     47       scoped_refptr<base::SequencedTaskRunner> network_task_runner) = 0;
     48 
     49   // Clears browsing data on the associated Monitor. |Init()| must have been
     50   // called first.
     51   virtual void ClearBrowsingData(DomainReliabilityClearMode clear_mode,
     52                                  const base::Closure& callback) = 0;
     53 
     54   // KeyedService implementation:
     55   virtual void Shutdown() OVERRIDE = 0;
     56 
     57  protected:
     58   DomainReliabilityService();
     59 
     60  private:
     61   DISALLOW_COPY_AND_ASSIGN(DomainReliabilityService);
     62 };
     63 
     64 }  // namespace domain_reliability
     65 
     66 #endif  // COMPONENTS_DOMAIN_RELIABILITY_SERVICE_H_
     67