[Autofill] Create a singleton instance of Autofill StrikeDatabase

Bug: 884817
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: Ifdf444eab32052a9b84d17a9b21ccf14edb78e52
Reviewed-on: https://chromium-review.googlesource.com/c/1255723Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Reviewed-by: Moe Ahmadi <mahmadi@chromium.org>
Reviewed-by: Richard Coles <torne@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Commit-Queue: Jared Saul <jsaul@google.com>
Cr-Commit-Position: refs/heads/master@{#597289}

android_webview/browser/aw_autofill_client.cc

@@ -76,6 +76,10 @@ identity::IdentityManager* AwAutofillClient::GetIdentityManager() {
   return nullptr;
 }
 
+autofill::StrikeDatabase* AwAutofillClient::GetStrikeDatabase() {
+  return nullptr;
+}
+
 ukm::UkmRecorder* AwAutofillClient::GetUkmRecorder() {
   return nullptr;
 }

android_webview/browser/aw_autofill_client.h

@@ -23,6 +23,7 @@ class CreditCard;
 class FormStructure;
 class MigratableCreditCard;
 class PersonalDataManager;
+class StrikeDatabase;
 }
 
 namespace content {
@@ -63,6 +64,7 @@ class AwAutofillClient : public autofill::AutofillClient,
   PrefService* GetPrefs() override;
   syncer::SyncService* GetSyncService() override;
   identity::IdentityManager* GetIdentityManager() override;
+  autofill::StrikeDatabase* GetStrikeDatabase() override;
   ukm::UkmRecorder* GetUkmRecorder() override;
   ukm::SourceId GetUkmSourceId() override;
   autofill::AddressNormalizer* GetAddressNormalizer() override;

chrome/browser/BUILD.gn

@@ -116,6 +116,8 @@ jumbo_split_static_library("browser") {
     "autofill/personal_data_manager_factory.h",
     "autofill/risk_util.cc",
     "autofill/risk_util.h",
+    "autofill/strike_database_factory.cc",
+    "autofill/strike_database_factory.h",
     "autofill/validation_rules_storage_factory.cc",
     "autofill/validation_rules_storage_factory.h",
     "background_fetch/background_fetch_delegate_factory.cc",

chrome/browser/autofill/strike_database_factory.cc

+// Copyright 2018 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/autofill/strike_database_factory.h"
+
+#include "base/memory/singleton.h"
+#include "chrome/browser/profiles/incognito_helpers.h"
+#include "chrome/browser/profiles/profile.h"
+#include "components/autofill/core/browser/strike_database.h"
+#include "components/keyed_service/content/browser_context_dependency_manager.h"
+
+namespace autofill {
+
+// static
+StrikeDatabase* StrikeDatabaseFactory::GetForProfile(Profile* profile) {
+  return static_cast<StrikeDatabase*>(
+      GetInstance()->GetServiceForBrowserContext(profile, true));
+}
+
+// static
+StrikeDatabaseFactory* StrikeDatabaseFactory::GetInstance() {
+  return base::Singleton<StrikeDatabaseFactory>::get();
+}
+
+StrikeDatabaseFactory::StrikeDatabaseFactory()
+    : BrowserContextKeyedServiceFactory(
+          "AutofillStrikeDatabase",
+          BrowserContextDependencyManager::GetInstance()) {}
+
+StrikeDatabaseFactory::~StrikeDatabaseFactory() {}
+
+KeyedService* StrikeDatabaseFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  Profile* profile = Profile::FromBrowserContext(context);
+  // Note: This instance becomes owned by an object that never gets destroyed,
+  // effectively leaking it until browser close. Only one is created per
+  // profile, and closing-then-opening a profile returns the same instance.
+  return new StrikeDatabase(
+      profile->GetPath().Append(FILE_PATH_LITERAL("AutofillStrikeDatabase")));
+}
+
+content::BrowserContext* StrikeDatabaseFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return chrome::GetBrowserContextRedirectedInIncognito(context);
+}
+
+}  // namespace autofill

chrome/browser/autofill/strike_database_factory.h

+// Copyright 2018 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.
+
+#ifndef CHROME_BROWSER_AUTOFILL_STRIKE_DATABASE_FACTORY_H_
+#define CHROME_BROWSER_AUTOFILL_STRIKE_DATABASE_FACTORY_H_
+
+#include "base/compiler_specific.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+#include "components/keyed_service/core/keyed_service.h"
+
+namespace base {
+template <typename T>
+struct DefaultSingletonTraits;
+}
+
+class Profile;
+
+namespace autofill {
+
+class StrikeDatabase;
+
+// Singleton that owns all StrikeDatabases and associates them with Profiles.
+class StrikeDatabaseFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  // Returns the StrikeDatabase for |profile|, creating it if it is not yet
+  // created.
+  static StrikeDatabase* GetForProfile(Profile* profile);
+
+  static StrikeDatabaseFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<StrikeDatabaseFactory>;
+
+  StrikeDatabaseFactory();
+  ~StrikeDatabaseFactory() override;
+
+  // BrowserContextKeyedServiceFactory:
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* profile) const override;
+  content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(StrikeDatabaseFactory);
+};
+
+}  // namespace autofill
+
+#endif  // CHROME_BROWSER_AUTOFILL_STRIKE_DATABASE_FACTORY_H_

chrome/browser/ui/autofill/chrome_autofill_client.cc

@@ -13,6 +13,7 @@
 #include "chrome/browser/autofill/address_normalizer_factory.h"
 #include "chrome/browser/autofill/personal_data_manager_factory.h"
 #include "chrome/browser/autofill/risk_util.h"
+#include "chrome/browser/autofill/strike_database_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/password_manager/chrome_password_manager_client.h"
 #include "chrome/browser/profiles/profile.h"
@@ -138,6 +139,18 @@ identity::IdentityManager* ChromeAutofillClient::GetIdentityManager() {
   return IdentityManagerFactory::GetForProfile(profile->GetOriginalProfile());
 }
 
+StrikeDatabase* ChromeAutofillClient::GetStrikeDatabase() {
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents()->GetBrowserContext());
+  // No need to return a StrikeDatabase in incognito mode. It is primarily used
+  // to determine whether or not to offer save of Autofill data. However, we
+  // don't allow saving of Autofill data while in incognito anyway, so an
+  // incognito code path should never get far enough to query StrikeDatabase.
+  return profile->IsOffTheRecord()
+             ? nullptr
+             : StrikeDatabaseFactory::GetForProfile(profile);
+}
+
 ukm::UkmRecorder* ChromeAutofillClient::GetUkmRecorder() {
   return ukm::UkmRecorder::Get();
 }

chrome/browser/ui/autofill/chrome_autofill_client.h

@@ -54,6 +54,7 @@ class ChromeAutofillClient
   PrefService* GetPrefs() override;
   syncer::SyncService* GetSyncService() override;
   identity::IdentityManager* GetIdentityManager() override;
+  StrikeDatabase* GetStrikeDatabase() override;
   ukm::UkmRecorder* GetUkmRecorder() override;
   ukm::SourceId GetUkmSourceId() override;
   AddressNormalizer* GetAddressNormalizer() override;

components/autofill/core/browser/autofill_client.h

@@ -53,6 +53,7 @@ class CreditCard;
 class FormStructure;
 class MigratableCreditCard;
 class PersonalDataManager;
+class StrikeDatabase;
 struct Suggestion;
 
 // A client interface that needs to be supplied to the Autofill component by the
@@ -113,6 +114,9 @@ class AutofillClient : public RiskDataLoader {
   // Gets the IdentityManager associated with the client.
   virtual identity::IdentityManager* GetIdentityManager() = 0;
 
+  // Gets the StrikeDatabase associated with the client.
+  virtual StrikeDatabase* GetStrikeDatabase() = 0;
+
   // Gets the UKM service associated with this client (for metrics).
   virtual ukm::UkmRecorder* GetUkmRecorder() = 0;
 

components/autofill/core/browser/strike_database.h

@@ -10,6 +10,7 @@
 
 #include "base/callback_forward.h"
 #include "base/memory/weak_ptr.h"
+#include "components/keyed_service/core/keyed_service.h"
 #include "components/leveldb_proto/proto_database.h"
 
 namespace autofill {
@@ -19,7 +20,7 @@ class StrikeData;
 // the user. Projects can earn strikes in a number of ways; for instance, if a
 // user ignores or declines a prompt, or if a user accepts a prompt but the task
 // fails.
-class StrikeDatabase {
+class StrikeDatabase : public KeyedService {
  public:
   using ClearStrikesCallback = base::RepeatingCallback<void(bool success)>;
 
@@ -34,7 +35,7 @@ class StrikeDatabase {
   using StrikeDataProto = leveldb_proto::ProtoDatabase<StrikeData>;
 
   explicit StrikeDatabase(const base::FilePath& database_dir);
-  ~StrikeDatabase();
+  ~StrikeDatabase() override;
 
   // Passes the number of strikes for |key| to |outer_callback|. In the case
   // that the database fails to retrieve the strike update or if no entry is

components/autofill/core/browser/test_autofill_client.cc

@@ -36,6 +36,10 @@ identity::IdentityManager* TestAutofillClient::GetIdentityManager() {
   return identity_test_env_.identity_manager();
 }
 
+StrikeDatabase* TestAutofillClient::GetStrikeDatabase() {
+  return nullptr;
+}
+
 ukm::UkmRecorder* TestAutofillClient::GetUkmRecorder() {
   return ukm::UkmRecorder::Get();
 }

components/autofill/core/browser/test_autofill_client.h

@@ -33,6 +33,7 @@ class TestAutofillClient : public AutofillClient {
   PrefService* GetPrefs() override;
   syncer::SyncService* GetSyncService() override;
   identity::IdentityManager* GetIdentityManager() override;
+  StrikeDatabase* GetStrikeDatabase() override;
   ukm::UkmRecorder* GetUkmRecorder() override;
   ukm::SourceId GetUkmSourceId() override;
   AddressNormalizer* GetAddressNormalizer() override;

ios/chrome/browser/autofill/BUILD.gn

@@ -26,6 +26,8 @@ source_set("autofill") {
     "form_suggestion_view_client.h",
     "personal_data_manager_factory.cc",
     "personal_data_manager_factory.h",
+    "strike_database_factory.cc",
+    "strike_database_factory.h",
     "validation_rules_storage_factory.cc",
     "validation_rules_storage_factory.h",
   ]
@@ -67,6 +69,7 @@ source_set("autofill") {
     "//ios/chrome/browser/ui/autofill/manual_fill:manual_fill_ui",
     "//ios/chrome/browser/ui/image_util",
     "//ios/web",
+    "//third_party/leveldatabase",
     "//third_party/libaddressinput",
     "//ui/base",
     "//url",
@@ -116,6 +119,7 @@ source_set("autofill_internal") {
     "//ios/chrome/browser/signin",
     "//ios/chrome/browser/ui/autofill",
     "//ios/web",
+    "//third_party/leveldatabase",
     "//ui/gfx/geometry",
     "//url",
   ]
@@ -162,6 +166,7 @@ source_set("unit_tests") {
     "//ios/web",
     "//ios/web/public/test",
     "//testing/gtest",
+    "//third_party/leveldatabase",
     "//third_party/ocmock",
     "//ui/base:test_support",
   ]

ios/chrome/browser/autofill/strike_database_factory.cc

+// Copyright 2018 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 "ios/chrome/browser/autofill/strike_database_factory.h"
+
+#include <utility>
+
+#include "base/memory/singleton.h"
+#include "components/autofill/core/browser/strike_database.h"
+#include "components/keyed_service/ios/browser_state_dependency_manager.h"
+#include "ios/chrome/browser/application_context.h"
+#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
+
+namespace autofill {
+
+// static
+StrikeDatabase* StrikeDatabaseFactory::GetForBrowserState(
+    ios::ChromeBrowserState* browser_state) {
+  return static_cast<StrikeDatabase*>(
+      GetInstance()->GetServiceForBrowserState(browser_state, true));
+}
+
+// static
+StrikeDatabaseFactory* StrikeDatabaseFactory::GetInstance() {
+  return base::Singleton<StrikeDatabaseFactory>::get();
+}
+
+StrikeDatabaseFactory::StrikeDatabaseFactory()
+    : BrowserStateKeyedServiceFactory(
+          "AutofillStrikeDatabase",
+          BrowserStateDependencyManager::GetInstance()) {}
+
+StrikeDatabaseFactory::~StrikeDatabaseFactory() {}
+
+std::unique_ptr<KeyedService> StrikeDatabaseFactory::BuildServiceInstanceFor(
+    web::BrowserState* context) const {
+  ios::ChromeBrowserState* chrome_browser_state =
+      ios::ChromeBrowserState::FromBrowserState(context);
+  return std::make_unique<autofill::StrikeDatabase>(
+      chrome_browser_state->GetStatePath().Append(
+          FILE_PATH_LITERAL("AutofillStrikeDatabase")));
+}
+
+}  // namespace autofill

ios/chrome/browser/autofill/strike_database_factory.h

+// Copyright 2018 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.
+
+#ifndef IOS_CHROME_BROWSER_AUTOFILL_STRIKE_DATABASE_FACTORY_H_
+#define IOS_CHROME_BROWSER_AUTOFILL_STRIKE_DATABASE_FACTORY_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
+
+namespace base {
+template <typename T>
+struct DefaultSingletonTraits;
+}  // namespace base
+
+namespace ios {
+class ChromeBrowserState;
+}
+
+namespace autofill {
+
+class StrikeDatabase;
+
+// Singleton that owns all StrikeDatabases and associates them with
+// ios::ChromeBrowserState.
+class StrikeDatabaseFactory : public BrowserStateKeyedServiceFactory {
+ public:
+  static StrikeDatabase* GetForBrowserState(
+      ios::ChromeBrowserState* browser_state);
+  static StrikeDatabaseFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<StrikeDatabaseFactory>;
+
+  StrikeDatabaseFactory();
+  ~StrikeDatabaseFactory() override;
+
+  // BrowserStateKeyedServiceFactory implementation.
+  std::unique_ptr<KeyedService> BuildServiceInstanceFor(
+      web::BrowserState* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(StrikeDatabaseFactory);
+};
+
+}  // namespace autofill
+
+#endif  // IOS_CHROME_BROWSER_AUTOFILL_STRIKE_DATABASE_FACTORY_H_

ios/chrome/browser/ui/autofill/BUILD.gn

@@ -26,6 +26,7 @@ source_set("autofill") {
     "//components/browser_sync",
     "//components/infobars/core",
     "//components/keyed_service/core",
+    "//components/leveldb_proto",
     "//components/password_manager/core/browser",
     "//components/prefs",
     "//components/strings",

ios/chrome/browser/ui/autofill/chrome_autofill_client_ios.h

@@ -14,6 +14,7 @@
 #include "components/autofill/core/browser/autofill_client.h"
 #include "components/autofill/core/browser/card_unmask_delegate.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
+#include "components/autofill/core/browser/strike_database.h"
 #include "components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.h"
 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
 #import "components/autofill/ios/browser/autofill_client_ios_bridge.h"
@@ -47,6 +48,7 @@ class ChromeAutofillClientIOS : public AutofillClient {
   PrefService* GetPrefs() override;
   syncer::SyncService* GetSyncService() override;
   identity::IdentityManager* GetIdentityManager() override;
+  StrikeDatabase* GetStrikeDatabase() override;
   ukm::UkmRecorder* GetUkmRecorder() override;
   ukm::SourceId GetUkmSourceId() override;
   AddressNormalizer* GetAddressNormalizer() override;
@@ -108,6 +110,7 @@ class ChromeAutofillClientIOS : public AutofillClient {
   web::WebState* web_state_;
   __weak id<AutofillClientIOSBridge> bridge_;
   identity::IdentityManager* identity_manager_;
+  StrikeDatabase* strike_database_;
   scoped_refptr<AutofillWebDataService> autofill_web_data_service_;
   infobars::InfoBarManager* infobar_manager_;
   password_manager::PasswordGenerationManager* password_generation_manager_;

ios/chrome/browser/ui/autofill/chrome_autofill_client_ios.mm

@@ -22,6 +22,7 @@
 #include "ios/chrome/browser/application_context.h"
 #include "ios/chrome/browser/autofill/address_normalizer_factory.h"
 #include "ios/chrome/browser/autofill/personal_data_manager_factory.h"
+#include "ios/chrome/browser/autofill/strike_database_factory.h"
 #include "ios/chrome/browser/infobars/infobar.h"
 #include "ios/chrome/browser/infobars/infobar_utils.h"
 #include "ios/chrome/browser/metrics/ukm_url_recorder.h"
@@ -67,6 +68,8 @@ ChromeAutofillClientIOS::ChromeAutofillClientIOS(
       bridge_(bridge),
       identity_manager_(IdentityManagerFactory::GetForBrowserState(
           browser_state->GetOriginalChromeBrowserState())),
+      strike_database_(StrikeDatabaseFactory::GetForBrowserState(
+          browser_state->GetOriginalChromeBrowserState())),
       autofill_web_data_service_(
           ios::WebDataServiceFactory::GetAutofillWebDataForBrowserState(
               browser_state,
@@ -101,6 +104,10 @@ identity::IdentityManager* ChromeAutofillClientIOS::GetIdentityManager() {
   return identity_manager_;
 }
 
+StrikeDatabase* ChromeAutofillClientIOS::GetStrikeDatabase() {
+  return strike_database_;
+}
+
 ukm::UkmRecorder* ChromeAutofillClientIOS::GetUkmRecorder() {
   return GetApplicationContext()->GetUkmRecorder();
 }

ios/web_view/BUILD.gn

@@ -99,6 +99,8 @@ ios_web_view_sources = [
   "internal/autofill/web_view_autofill_client_ios.mm",
   "internal/autofill/web_view_personal_data_manager_factory.cc",
   "internal/autofill/web_view_personal_data_manager_factory.h",
+  "internal/autofill/web_view_strike_database_factory.cc",
+  "internal/autofill/web_view_strike_database_factory.h",
   "internal/content_settings/web_view_cookie_settings_factory.cc",
   "internal/content_settings/web_view_cookie_settings_factory.h",
   "internal/content_settings/web_view_host_content_settings_map_factory.cc",

ios/web_view/internal/autofill/cwv_autofill_controller.mm

@@ -33,6 +33,7 @@
 #import "ios/web_view/internal/autofill/cwv_credit_card_verifier_internal.h"
 #import "ios/web_view/internal/autofill/web_view_autofill_client_ios.h"
 #include "ios/web_view/internal/autofill/web_view_personal_data_manager_factory.h"
+#include "ios/web_view/internal/autofill/web_view_strike_database_factory.h"
 #import "ios/web_view/internal/passwords/cwv_password_controller.h"
 #include "ios/web_view/internal/signin/web_view_identity_manager_factory.h"
 #import "ios/web_view/internal/sync/web_view_profile_sync_service_factory.h"
@@ -108,6 +109,8 @@
         _webState, self,
         ios_web_view::WebViewIdentityManagerFactory::GetForBrowserState(
             browserState->GetRecordingBrowserState()),
+        ios_web_view::WebViewStrikeDatabaseFactory::GetForBrowserState(
+            browserState->GetRecordingBrowserState()),
         ios_web_view::WebViewWebDataServiceWrapperFactory::
             GetAutofillWebDataForBrowserState(
                 browserState, ServiceAccessType::EXPLICIT_ACCESS),

ios/web_view/internal/autofill/web_view_autofill_client_ios.h

@@ -14,6 +14,7 @@
 #include "components/autofill/core/browser/autofill_client.h"
 #include "components/autofill/core/browser/card_unmask_delegate.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
+#include "components/autofill/core/browser/strike_database.h"
 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
 #include "components/prefs/pref_service.h"
 #include "components/sync/driver/sync_service.h"
@@ -31,6 +32,7 @@ class WebViewAutofillClientIOS : public AutofillClient {
       web::WebState* web_state,
       id<CWVAutofillClientIOSBridge> bridge,
       identity::IdentityManager* identity_manager,
+      StrikeDatabase* strike_database,
       scoped_refptr<AutofillWebDataService> autofill_web_data_service,
       syncer::SyncService* sync_service);
   ~WebViewAutofillClientIOS() override;
@@ -40,6 +42,7 @@ class WebViewAutofillClientIOS : public AutofillClient {
   PrefService* GetPrefs() override;
   syncer::SyncService* GetSyncService() override;
   identity::IdentityManager* GetIdentityManager() override;
+  StrikeDatabase* GetStrikeDatabase() override;
   ukm::UkmRecorder* GetUkmRecorder() override;
   ukm::SourceId GetUkmSourceId() override;
   AddressNormalizer* GetAddressNormalizer() override;
@@ -100,6 +103,7 @@ class WebViewAutofillClientIOS : public AutofillClient {
   web::WebState* web_state_;
   __weak id<CWVAutofillClientIOSBridge> bridge_;
   identity::IdentityManager* identity_manager_;
+  StrikeDatabase* strike_database_;
   scoped_refptr<AutofillWebDataService> autofill_web_data_service_;
   syncer::SyncService* sync_service_ = nullptr;
 

ios/web_view/internal/autofill/web_view_autofill_client_ios.mm

@@ -23,6 +23,7 @@ WebViewAutofillClientIOS::WebViewAutofillClientIOS(
     web::WebState* web_state,
     id<CWVAutofillClientIOSBridge> bridge,
     identity::IdentityManager* identity_manager,
+    StrikeDatabase* strike_database,
     scoped_refptr<AutofillWebDataService> autofill_web_data_service,
     syncer::SyncService* sync_service)
     : pref_service_(pref_service),
@@ -30,6 +31,7 @@ WebViewAutofillClientIOS::WebViewAutofillClientIOS(
       web_state_(web_state),
       bridge_(bridge),
       identity_manager_(identity_manager),
+      strike_database_(strike_database),
       autofill_web_data_service_(autofill_web_data_service),
       sync_service_(sync_service) {}
 
@@ -53,6 +55,10 @@ identity::IdentityManager* WebViewAutofillClientIOS::GetIdentityManager() {
   return identity_manager_;
 }
 
+StrikeDatabase* WebViewAutofillClientIOS::GetStrikeDatabase() {
+  return strike_database_;
+}
+
 ukm::UkmRecorder* WebViewAutofillClientIOS::GetUkmRecorder() {
   // UKM recording is not supported for WebViews.
   return nullptr;

ios/web_view/internal/autofill/web_view_strike_database_factory.cc

+// Copyright 2018 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 "ios/web_view/internal/autofill/web_view_strike_database_factory.h"
+
+#include <utility>
+
+#include "base/memory/singleton.h"
+#include "components/autofill/core/browser/strike_database.h"
+#include "components/keyed_service/ios/browser_state_dependency_manager.h"
+#include "ios/web_view/internal/app/application_context.h"
+#include "ios/web_view/internal/web_view_browser_state.h"
+
+namespace ios_web_view {
+
+// static
+autofill::StrikeDatabase* WebViewStrikeDatabaseFactory::GetForBrowserState(
+    WebViewBrowserState* browser_state) {
+  return static_cast<autofill::StrikeDatabase*>(
+      GetInstance()->GetServiceForBrowserState(browser_state, true));
+}
+
+// static
+WebViewStrikeDatabaseFactory* WebViewStrikeDatabaseFactory::GetInstance() {
+  return base::Singleton<WebViewStrikeDatabaseFactory>::get();
+}
+
+WebViewStrikeDatabaseFactory::WebViewStrikeDatabaseFactory()
+    : BrowserStateKeyedServiceFactory(
+          "AutofillStrikeDatabase",
+          BrowserStateDependencyManager::GetInstance()) {}
+
+WebViewStrikeDatabaseFactory::~WebViewStrikeDatabaseFactory() {}
+
+std::unique_ptr<KeyedService>
+WebViewStrikeDatabaseFactory::BuildServiceInstanceFor(
+    web::BrowserState* context) const {
+  WebViewBrowserState* browser_state =
+      WebViewBrowserState::FromBrowserState(context);
+  return std::make_unique<autofill::StrikeDatabase>(
+      browser_state->GetStatePath().Append(
+          FILE_PATH_LITERAL("AutofillStrikeDatabase")));
+}
+
+}  // namespace ios_web_view

ios/web_view/internal/autofill/web_view_strike_database_factory.h

+// Copyright 2018 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.
+
+#ifndef IOS_WEB_VIEW_INTERNAL_AUTOFILL_WEB_VIEW_STRIKE_DATABASE_FACTORY_H_
+#define IOS_WEB_VIEW_INTERNAL_AUTOFILL_WEB_VIEW_STRIKE_DATABASE_FACTORY_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
+
+namespace base {
+template <typename T>
+struct DefaultSingletonTraits;
+}  // namespace base
+
+namespace autofill {
+class StrikeDatabase;
+}
+
+namespace ios_web_view {
+class WebViewBrowserState;
+
+// Singleton that owns all StrikeDatabases and associates them with
+// ios_web_view::WebViewBrowserState.
+class WebViewStrikeDatabaseFactory : public BrowserStateKeyedServiceFactory {
+ public:
+  static autofill::StrikeDatabase* GetForBrowserState(
+      WebViewBrowserState* browser_state);
+  static WebViewStrikeDatabaseFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<WebViewStrikeDatabaseFactory>;
+
+  WebViewStrikeDatabaseFactory();
+  ~WebViewStrikeDatabaseFactory() override;
+
+  // BrowserStateKeyedServiceFactory implementation.
+  std::unique_ptr<KeyedService> BuildServiceInstanceFor(
+      web::BrowserState* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(WebViewStrikeDatabaseFactory);
+};
+
+}  // namespace ios_web_view
+
+#endif  // IOS_WEB_VIEW_INTERNAL_AUTOFILL_WEB_VIEW_STRIKE_DATABASE_FACTORY_H_