chrome/browser/browsing_data/browsing_data_counter.cc

   1 // Copyright (c) 2015 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 #include "chrome/browser/browsing_data/browsing_data_counter.h"
   6
   7 #include "base/prefs/pref_service.h"
   8 #include "chrome/browser/profiles/profile.h"
   9
  10 BrowsingDataCounter::BrowsingDataCounter() {}
  11
  12 BrowsingDataCounter::~BrowsingDataCounter() {
  13 }
  14
  15 void BrowsingDataCounter::Init(
  16     Profile* profile,
  17     const Callback& callback) {
  18   DCHECK(!initialized_);
  19   profile_ = profile;
  20   callback_ = callback;
  21   pref_.Init(
  22       GetPrefName(),
  23       profile_->GetPrefs(),
  24       base::Bind(&BrowsingDataCounter::RestartCounting,
  25                  base::Unretained(this)));
  26
  27   initialized_ = true;
  28   OnInitialized();
  29   RestartCounting();
  30 }
  31
  32 Profile* BrowsingDataCounter::GetProfile() const {
  33   return profile_;
  34 }
  35
  36 void BrowsingDataCounter::OnInitialized() {
  37 }
  38
  39 void BrowsingDataCounter::RestartCounting() {
  40   DCHECK(initialized_);
  41
  42   // If this data type was unchecked for deletion, we do not need to count it.
  43   if (!profile_->GetPrefs()->GetBoolean(GetPrefName()))
  44     return;
  45
  46   // If counting is already in progress, do not restart it.
  47   if (counting_)
  48     return;
  49
  50   callback_.Run(false, 0u);
  51
  52   counting_ = true;
  53   Count();
  54 }
  55
  56 void BrowsingDataCounter::ReportResult(uint32 value) {
  57   DCHECK(initialized_);
  58   DCHECK(counting_);
  59   counting_ = false;
  60   callback_.Run(true, value);
  61 }