Revert of Move the files related to Android<->Web credentials to a separate folder.

components/password_manager/core/browser/android_affiliation/affiliation_backend.cc

Index: components/password_manager/core/browser/android_affiliation/affiliation_backend.cc
diff --git a/components/password_manager/core/browser/android_affiliation/affiliation_backend.cc b/components/password_manager/core/browser/android_affiliation/affiliation_backend.cc
deleted file mode 100644
index 43cd38e23ba92913c248d9bc30b9edb441c171f5..0000000000000000000000000000000000000000
--- a/components/password_manager/core/browser/android_affiliation/affiliation_backend.cc
+++ /dev/null
@@ -1,294 +0,0 @@
-// 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 "components/password_manager/core/browser/android_affiliation/affiliation_backend.h"
-
-#include <stdint.h>
-#include <algorithm>
-#include <utility>
-
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/memory/ptr_util.h"
-#include "base/metrics/histogram_macros.h"
-#include "base/single_thread_task_runner.h"
-#include "base/threading/thread_checker.h"
-#include "base/time/clock.h"
-#include "base/time/tick_clock.h"
-#include "base/time/time.h"
-#include "components/password_manager/core/browser/android_affiliation/affiliation_database.h"
-#include "components/password_manager/core/browser/android_affiliation/affiliation_fetch_throttler.h"
-#include "components/password_manager/core/browser/android_affiliation/affiliation_fetcher.h"
-#include "components/password_manager/core/browser/android_affiliation/facet_manager.h"
-#include "net/url_request/url_request_context_getter.h"
-
-namespace password_manager {
-
-AffiliationBackend::AffiliationBackend(
-    const scoped_refptr<net::URLRequestContextGetter>& request_context_getter,
-    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-    std::unique_ptr<base::Clock> time_source,
-    std::unique_ptr<base::TickClock> time_tick_source)
-    : request_context_getter_(request_context_getter),
-      task_runner_(task_runner),
-      clock_(std::move(time_source)),
-      tick_clock_(std::move(time_tick_source)),
-      construction_time_(clock_->Now()),
-      weak_ptr_factory_(this) {
-  DCHECK_LT(base::Time(), clock_->Now());
-}
-
-AffiliationBackend::~AffiliationBackend() {
-}
-
-void AffiliationBackend::Initialize(const base::FilePath& db_path) {
-  thread_checker_.reset(new base::ThreadChecker);
-
-  DCHECK(!throttler_);
-  throttler_.reset(
-      new AffiliationFetchThrottler(this, task_runner_, tick_clock_.get()));
-
-  // TODO(engedy): Currently, when Init() returns false, it always poisons the
-  // DB, so subsequent operations will silently fail. Consider either fully
-  // committing to this approach and making Init() a void, or handling the
-  // return value here. See: https://crbug.com/478831.
-  cache_.reset(new AffiliationDatabase());
-  cache_->Init(db_path);
-}
-
-void AffiliationBackend::GetAffiliations(
-    const FacetURI& facet_uri,
-    StrategyOnCacheMiss cache_miss_strategy,
-    const AffiliationService::ResultCallback& callback,
-    const scoped_refptr<base::TaskRunner>& callback_task_runner) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  FacetManager* facet_manager = GetOrCreateFacetManager(facet_uri);
-  DCHECK(facet_manager);
-  facet_manager->GetAffiliations(cache_miss_strategy, callback,
-                                 callback_task_runner);
-
-  if (facet_manager->CanBeDiscarded())
-    facet_managers_.erase(facet_uri);
-}
-
-void AffiliationBackend::Prefetch(const FacetURI& facet_uri,
-                                  const base::Time& keep_fresh_until) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  FacetManager* facet_manager = GetOrCreateFacetManager(facet_uri);
-  DCHECK(facet_manager);
-  facet_manager->Prefetch(keep_fresh_until);
-
-  if (facet_manager->CanBeDiscarded())
-    facet_managers_.erase(facet_uri);
-}
-
-void AffiliationBackend::CancelPrefetch(const FacetURI& facet_uri,
-                                        const base::Time& keep_fresh_until) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  auto facet_manager_it = facet_managers_.find(facet_uri);
-  if (facet_manager_it == facet_managers_.end())
-    return;
-  facet_manager_it->second->CancelPrefetch(keep_fresh_until);
-
-  if (facet_manager_it->second->CanBeDiscarded())
-    facet_managers_.erase(facet_uri);
-}
-
-void AffiliationBackend::TrimCache() {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  std::vector<AffiliatedFacetsWithUpdateTime> all_affiliations;
-  cache_->GetAllAffiliations(&all_affiliations);
-  for (const auto& affiliation : all_affiliations)
-    DiscardCachedDataIfNoLongerNeeded(affiliation.facets);
-}
-
-void AffiliationBackend::TrimCacheForFacet(const FacetURI& facet_uri) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  AffiliatedFacetsWithUpdateTime affiliation;
-  if (cache_->GetAffiliationsForFacet(facet_uri, &affiliation))
-    DiscardCachedDataIfNoLongerNeeded(affiliation.facets);
-}
-
-// static
-void AffiliationBackend::DeleteCache(const base::FilePath& db_path) {
-  AffiliationDatabase::Delete(db_path);
-}
-
-FacetManager* AffiliationBackend::GetOrCreateFacetManager(
-    const FacetURI& facet_uri) {
-  std::unique_ptr<FacetManager>& facet_manager = facet_managers_[facet_uri];
-  if (!facet_manager) {
-    facet_manager =
-        base::MakeUnique<FacetManager>(facet_uri, this, clock_.get());
-  }
-  return facet_manager.get();
-}
-
-void AffiliationBackend::DiscardCachedDataIfNoLongerNeeded(
-    const AffiliatedFacets& affiliated_facets) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  // Discard the equivalence class if there is no facet in the class whose
-  // FacetManager claims that it needs to keep the data.
-  for (const auto& facet_uri : affiliated_facets) {
-    auto facet_manager_it = facet_managers_.find(facet_uri);
-    if (facet_manager_it != facet_managers_.end() &&
-        !facet_manager_it->second->CanCachedDataBeDiscarded()) {
-      return;
-    }
-  }
-
-  CHECK(!affiliated_facets.empty());
-  cache_->DeleteAffiliationsForFacet(affiliated_facets[0]);
-}
-
-void AffiliationBackend::OnSendNotification(const FacetURI& facet_uri) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  auto facet_manager_it = facet_managers_.find(facet_uri);
-  if (facet_manager_it == facet_managers_.end())
-    return;
-  facet_manager_it->second->NotifyAtRequestedTime();
-
-  if (facet_manager_it->second->CanBeDiscarded())
-    facet_managers_.erase(facet_uri);
-}
-
-bool AffiliationBackend::ReadAffiliationsFromDatabase(
-    const FacetURI& facet_uri,
-    AffiliatedFacetsWithUpdateTime* affiliations) {
-  return cache_->GetAffiliationsForFacet(facet_uri, affiliations);
-}
-
-void AffiliationBackend::SignalNeedNetworkRequest() {
-  throttler_->SignalNetworkRequestNeeded();
-}
-
-void AffiliationBackend::RequestNotificationAtTime(const FacetURI& facet_uri,
-                                                   base::Time time) {
-  // TODO(engedy): Avoid spamming the task runner; only ever schedule the first
-  // callback. crbug.com/437865.
-  task_runner_->PostDelayedTask(
-      FROM_HERE, base::Bind(&AffiliationBackend::OnSendNotification,
-                            weak_ptr_factory_.GetWeakPtr(), facet_uri),
-      time - clock_->Now());
-}
-
-void AffiliationBackend::OnFetchSucceeded(
-    std::unique_ptr<AffiliationFetcherDelegate::Result> result) {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  fetcher_.reset();
-  throttler_->InformOfNetworkRequestComplete(true);
-
-  for (const AffiliatedFacets& affiliated_facets : *result) {
-    AffiliatedFacetsWithUpdateTime affiliation;
-    affiliation.facets = affiliated_facets;
-    affiliation.last_update_time = clock_->Now();
-
-    std::vector<AffiliatedFacetsWithUpdateTime> obsoleted_affiliations;
-    cache_->StoreAndRemoveConflicting(affiliation, &obsoleted_affiliations);
-
-    // Cached data in contradiction with newly stored data automatically gets
-    // removed from the DB, and will be stored into |obsoleted_affiliations|.
-    // TODO(engedy): Currently, handling this is entirely meaningless unless in
-    // the edge case when the user has credentials for two Android applications
-    // which are now being de-associated. But even in that case, nothing will
-    // explode and the only symptom will be that credentials for the Android
-    // application that is not being fetched right now, if any, will not be
-    // filled into affiliated applications until the next fetch. Still, this
-    // should be implemented at some point by letting facet managers know if
-    // data. See: https://crbug.com/478832.
-
-    for (const auto& facet_uri : affiliated_facets) {
-      auto facet_manager_it = facet_managers_.find(facet_uri);
-      if (facet_manager_it == facet_managers_.end())
-        continue;
-      FacetManager* facet_manager = facet_manager_it->second.get();
-      facet_manager->OnFetchSucceeded(affiliation);
-      if (facet_manager->CanBeDiscarded())
-        facet_managers_.erase(facet_uri);
-    }
-  }
-
-  // A subsequent fetch may be needed if any additional GetAffiliations()
-  // requests came in while the current fetch was in flight.
-  for (const auto& facet_manager_pair : facet_managers_) {
-    if (facet_manager_pair.second->DoesRequireFetch()) {
-      throttler_->SignalNetworkRequestNeeded();
-      return;
-    }
-  }
-}
-
-void AffiliationBackend::OnFetchFailed() {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  fetcher_.reset();
-  throttler_->InformOfNetworkRequestComplete(false);
-
-  // Trigger a retry if a fetch is still needed.
-  for (const auto& facet_manager_pair : facet_managers_) {
-    if (facet_manager_pair.second->DoesRequireFetch()) {
-      throttler_->SignalNetworkRequestNeeded();
-      return;
-    }
-  }
-}
-
-void AffiliationBackend::OnMalformedResponse() {
-  DCHECK(thread_checker_ && thread_checker_->CalledOnValidThread());
-
-  // TODO(engedy): Potentially handle this case differently. crbug.com/437865.
-  OnFetchFailed();
-}
-
-bool AffiliationBackend::OnCanSendNetworkRequest() {
-  DCHECK(!fetcher_);
-  std::vector<FacetURI> requested_facet_uris;
-  for (const auto& facet_manager_pair : facet_managers_) {
-    if (facet_manager_pair.second->DoesRequireFetch())
-      requested_facet_uris.push_back(facet_manager_pair.first);
-  }
-
-  // In case a request is no longer needed, return false to indicate this.
-  if (requested_facet_uris.empty())
-    return false;
-
-  fetcher_.reset(AffiliationFetcher::Create(request_context_getter_.get(),
-                                            requested_facet_uris, this));
-  fetcher_->StartRequest();
-  ReportStatistics(requested_facet_uris.size());
-  return true;
-}
-
-void AffiliationBackend::ReportStatistics(size_t requested_facet_uri_count) {
-  UMA_HISTOGRAM_COUNTS_100("PasswordManager.AffiliationBackend.FetchSize",
-                           requested_facet_uri_count);
-
-  if (last_request_time_.is_null()) {
-    base::TimeDelta delay = clock_->Now() - construction_time_;
-    UMA_HISTOGRAM_CUSTOM_TIMES(
-        "PasswordManager.AffiliationBackend.FirstFetchDelay", delay,
-        base::TimeDelta::FromSeconds(1), base::TimeDelta::FromDays(3), 50);
-  } else {
-    base::TimeDelta delay = clock_->Now() - last_request_time_;
-    UMA_HISTOGRAM_CUSTOM_TIMES(
-        "PasswordManager.AffiliationBackend.SubsequentFetchDelay", delay,
-        base::TimeDelta::FromSeconds(1), base::TimeDelta::FromDays(3), 50);
-  }
-  last_request_time_ = clock_->Now();
-}
-
-void AffiliationBackend::SetThrottlerForTesting(
-    std::unique_ptr<AffiliationFetchThrottler> throttler) {
-  throttler_ = std::move(throttler);
-}
-
-}  // namespace password_manager