Move counters for passwords, history and autofill to components

chrome/browser/browsing_data/autofill_counter.cc

-// Copyright 2015 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.
-
-#include "chrome/browser/browsing_data/autofill_counter.h"
-
-#include <algorithm>
-#include <utility>
-#include <vector>
-
-#include "base/memory/scoped_vector.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/web_data_service_factory.h"
-#include "components/autofill/core/browser/autofill_profile.h"
-#include "components/autofill/core/browser/credit_card.h"
-#include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
-#include "components/browsing_data/core/pref_names.h"
-
-AutofillCounter::AutofillCounter(Profile* profile)
-    : BrowsingDataCounter(browsing_data::prefs::kDeleteFormData),
-      profile_(profile),
-      web_data_service_(nullptr),
-      suggestions_query_(0),
-      credit_cards_query_(0),
-      addresses_query_(0),
-      num_suggestions_(0),
-      num_credit_cards_(0),
-      num_addresses_(0) {}
-
-AutofillCounter::~AutofillCounter() {
-  CancelAllRequests();
-}
-
-void AutofillCounter::OnInitialized() {
-  web_data_service_ = WebDataServiceFactory::GetAutofillWebDataForProfile(
-      profile_, ServiceAccessType::EXPLICIT_ACCESS);
-  DCHECK(web_data_service_);
-}
-
-void AutofillCounter::SetPeriodStartForTesting(
-    const base::Time& period_start_for_testing) {
-  period_start_for_testing_ = period_start_for_testing;
-}
-
-void AutofillCounter::Count() {
-  const base::Time start = period_start_for_testing_.is_null()
-      ? GetPeriodStart()
-      : period_start_for_testing_;
-
-  CancelAllRequests();
-
-  // Count the autocomplete suggestions (also called form elements in Autofill).
-  // Note that |AutofillTable::RemoveFormElementsAddedBetween| only deletes
-  // those whose entire existence (i.e. the interval between creation time
-  // and last modified time) lies within the deletion time range. Otherwise,
-  // it only decreases the count property, but always to a nonzero value,
-  // and the suggestion is retained. Therefore here as well, we must only count
-  // the entries that are entirely contained in [start, base::Time::Max()).
-  // Further, many of these entries may contain the same values, as they are
-  // simply the same data point entered on different forms. For example,
-  // [name, value] pairs such as:
-  //     ["mail", "example@example.com"]
-  //     ["email", "example@example.com"]
-  //     ["e-mail", "example@example.com"]
-  // are stored as three separate entries, but from the user's perspective,
-  // they constitute the same suggestion - "my email". Therefore, for the final
-  // output, we will consider all entries with the same value as one suggestion,
-  // and increment the counter only if all entries with the given value are
-  // contained in the interval [start, base::Time::Max()).
-  suggestions_query_ = web_data_service_->GetCountOfValuesContainedBetween(
-      start, base::Time::Max(), this);
-
-  // Count the credit cards.
-  credit_cards_query_ = web_data_service_->GetCreditCards(this);
-
-  // Count the addresses.
-  addresses_query_ = web_data_service_->GetAutofillProfiles(this);
-}
-
-void AutofillCounter::OnWebDataServiceRequestDone(
-    WebDataServiceBase::Handle handle, const WDTypedResult* result) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (!result) {
-    CancelAllRequests();
-    return;
-  }
-
-  const base::Time start = period_start_for_testing_.is_null()
-      ? GetPeriodStart()
-      : period_start_for_testing_;
-
-  if (handle == suggestions_query_) {
-    // Autocomplete suggestions.
-    DCHECK_EQ(AUTOFILL_VALUE_RESULT, result->GetType());
-    num_suggestions_ = static_cast<const WDResult<int>*>(result)->GetValue();
-    suggestions_query_ = 0;
-
-  } else if (handle == credit_cards_query_) {
-    // Credit cards.
-    DCHECK_EQ(AUTOFILL_CREDITCARDS_RESULT, result->GetType());
-    const std::vector<autofill::CreditCard*> credit_cards =
-        static_cast<const WDResult<std::vector<autofill::CreditCard*>>*>(
-            result)->GetValue();
-
-    // We own the result from this query. Make sure it will be deleted.
-    ScopedVector<const autofill::CreditCard> owned_result;
-    owned_result.assign(credit_cards.begin(), credit_cards.end());
-
-    num_credit_cards_ = std::count_if(
-        credit_cards.begin(),
-        credit_cards.end(),
-        [start](const autofill::CreditCard* card) {
-          return card->modification_date() >= start;
-        });
-    credit_cards_query_ = 0;
-
-  } else if (handle == addresses_query_) {
-    // Addresses.
-    DCHECK_EQ(AUTOFILL_PROFILES_RESULT, result->GetType());
-    const std::vector<autofill::AutofillProfile*> addresses =
-        static_cast<const WDResult<std::vector<autofill::AutofillProfile*>>*>(
-            result)->GetValue();
-
-    // We own the result from this query. Make sure it will be deleted.
-    ScopedVector<const autofill::AutofillProfile> owned_result;
-    owned_result.assign(addresses.begin(), addresses.end());
-
-    num_addresses_ = std::count_if(
-        addresses.begin(),
-        addresses.end(),
-        [start](const autofill::AutofillProfile* address) {
-          return address->modification_date() >= start;
-        });
-    addresses_query_ = 0;
-
-  } else {
-    NOTREACHED() << "No such query: " << handle;
-  }
-
-  // If we still have pending queries, do not report data yet.
-  if (HasPendingQuery())
-    return;
-
-  std::unique_ptr<Result> reported_result(new AutofillResult(
-      this, num_suggestions_, num_credit_cards_, num_addresses_));
-  ReportResult(std::move(reported_result));
-}
-
-void AutofillCounter::CancelAllRequests() {
-  if (suggestions_query_)
-    web_data_service_->CancelRequest(suggestions_query_);
-  if (credit_cards_query_)
-    web_data_service_->CancelRequest(credit_cards_query_);
-  if (addresses_query_)
-    web_data_service_->CancelRequest(addresses_query_);
-}
-
-// AutofillCounter::AutofillResult ---------------------------------------------
-
-AutofillCounter::AutofillResult::AutofillResult(
-    const AutofillCounter* source,
-    ResultInt num_suggestions,
-    ResultInt num_credit_cards,
-    ResultInt num_addresses)
-    : FinishedResult(source, num_suggestions),
-      num_credit_cards_(num_credit_cards),
-      num_addresses_(num_addresses) {
-}
-
-AutofillCounter::AutofillResult::~AutofillResult() {
-}