Convert to use CoreAccountId on iOS.

This CL converts all ChromeOS code to use CoreAccountId instead of
std::string for the account id.

Bug: 959157
Change-Id: Ia27b9e566100ecd7c1ead3a5ca8e46da39e569ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1906149Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Mihai Sardarescu <msarda@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713856}

components/signin/internal/identity_manager/profile_oauth2_token_service_delegate_ios.mm

@@ -207,7 +207,7 @@ void ProfileOAuth2TokenServiceIOSDelegate::ReloadCredentials() {
   DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
 
   // Get the list of new account ids.
-  std::set<std::string> new_account_ids;
+  std::set<CoreAccountId> new_account_ids;
   for (const auto& new_account : provider_->GetAllAccounts()) {
     DCHECK(!new_account.gaia.empty());
     DCHECK(!new_account.email.empty());
@@ -216,7 +216,7 @@ void ProfileOAuth2TokenServiceIOSDelegate::ReloadCredentials() {
     // the GAIA ID is available if any client of this token service starts
     // a fetch access token operation when it receives a
     // |OnRefreshTokenAvailable| notification.
-    std::string account_id = account_tracker_service_->SeedAccountInfo(
+    CoreAccountId account_id = account_tracker_service_->SeedAccountInfo(
         AccountInfoFromDeviceAccount(new_account));
     new_account_ids.insert(account_id);
   }

components/signin/internal/identity_manager/profile_oauth2_token_service_delegate_ios_unittest.mm

@@ -99,7 +99,7 @@ class ProfileOAuth2TokenServiceIOSDelegateTest
     auth_error_changed_count_ = 0;
   }
 
-  std::string GetAccountId(const ProviderAccount& provider_account) {
+  CoreAccountId GetAccountId(const ProviderAccount& provider_account) {
     return account_tracker_.PickAccountIdForAccount(provider_account.gaia,
                                                     provider_account.email);
   }
@@ -139,7 +139,8 @@ TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
   EXPECT_EQ(0, tokens_loaded_count_);
   EXPECT_EQ(1, token_revoked_count_);
   EXPECT_EQ(0U, oauth2_delegate_->GetAccounts().size());
-  EXPECT_FALSE(oauth2_delegate_->RefreshTokenIsAvailable("another_account"));
+  EXPECT_FALSE(oauth2_delegate_->RefreshTokenIsAvailable(
+      CoreAccountId("another_account")));
 }
 
 TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
@@ -277,7 +278,7 @@ TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
   ResetObserverCounts();
   GoogleServiceAuthError error(GoogleServiceAuthError::SERVICE_ERROR);
   oauth2_delegate_->UpdateAuthError(GetAccountId(account1), error);
-  EXPECT_EQ(error, oauth2_delegate_->GetAuthError("gaia_1"));
+  EXPECT_EQ(error, oauth2_delegate_->GetAuthError(GetAccountId(account1)));
   EXPECT_EQ(1, auth_error_changed_count_);
 
   oauth2_delegate_->RevokeAllCredentials();
@@ -292,15 +293,15 @@ TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, GetAuthError) {
   oauth2_delegate_->ReloadCredentials();
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(GoogleServiceAuthError::AuthErrorNone(),
-            oauth2_delegate_->GetAuthError("gaia_1"));
+            oauth2_delegate_->GetAuthError(GetAccountId(account1)));
   // Update the error.
   GoogleServiceAuthError error =
       GoogleServiceAuthError::FromInvalidGaiaCredentialsReason(
           GoogleServiceAuthError::InvalidGaiaCredentialsReason::
               CREDENTIALS_REJECTED_BY_SERVER);
-  oauth2_delegate_->UpdateAuthError("gaia_1", error);
-  EXPECT_EQ(error, oauth2_delegate_->GetAuthError("gaia_1"));
+  oauth2_delegate_->UpdateAuthError(GetAccountId(account1), error);
+  EXPECT_EQ(error, oauth2_delegate_->GetAuthError(GetAccountId(account1)));
   // Unknown account has no error.
   EXPECT_EQ(GoogleServiceAuthError::AuthErrorNone(),
-            oauth2_delegate_->GetAuthError("gaia_2"));
+            oauth2_delegate_->GetAuthError(CoreAccountId("gaia_2")));
 }

google_apis/gaia/core_account_id.cc

@@ -22,7 +22,7 @@ CoreAccountId::CoreAccountId(std::string&& id) : id(std::move(id)) {}
 
 CoreAccountId::CoreAccountId(const std::string& id) : id(id) {}
 
-#if defined(OS_CHROMEOS) || defined(OS_IOS) || defined(OS_ANDROID)
+#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 CoreAccountId::operator std::string() const {
   return id;
 }

google_apis/gaia/core_account_id.h

@@ -24,7 +24,7 @@ struct CoreAccountId {
   CoreAccountId& operator=(const CoreAccountId&);
   CoreAccountId& operator=(CoreAccountId&&) noexcept;
 
-#if defined(OS_CHROMEOS) || defined(OS_IOS) || defined(OS_ANDROID)
+#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
   // Those implicit constructor and conversion operator allow to
   // progressively migrate the code to use this struct. Removing
   // them is tracked by https://crbug.com/959161

ios/chrome/browser/signin/authentication_service.h

@@ -139,7 +139,7 @@ class AuthenticationService : public KeyedService,
   // is only updated when the app is in foreground and used to detect
   // if any change occurred while the app was in background.
   // See HaveAccountsChangesWhileInBackground().
-  std::vector<std::string> GetLastKnownAccountsFromForeground();
+  std::vector<CoreAccountId> GetLastKnownAccountsFromForeground();
 
   // Returns the cached MDM infos associated with |identity|. If the cache
   // is stale for |identity|, the entry might be removed.
@@ -222,7 +222,7 @@ class AuthenticationService : public KeyedService,
   bool is_reloading_credentials_ = false;
 
   // Map between account IDs and their associated MDM error.
-  mutable std::map<std::string, NSDictionary*> cached_mdm_infos_;
+  mutable std::map<CoreAccountId, NSDictionary*> cached_mdm_infos_;
 
   ScopedObserver<ios::ChromeIdentityService,
                  ios::ChromeIdentityService::Observer>

ios/chrome/browser/signin/authentication_service.mm

@@ -54,7 +54,8 @@ enum LoginMethodAndSyncState {
 constexpr char kFakeAccountIdForRemovedAccount[] = "0000000000000";
 
 // Returns the account id associated with |identity|.
-std::string ChromeIdentityToAccountID(signin::IdentityManager* identity_manager,
+CoreAccountId ChromeIdentityToAccountID(
+    signin::IdentityManager* identity_manager,
     ChromeIdentity* identity) {
   std::string gaia_id = base::SysNSStringToUTF8([identity gaiaID]);
   auto maybe_account =
@@ -152,7 +153,7 @@ void AuthenticationService::OnApplicationWillEnterForeground() {
   // Clear signin errors on the accounts that had a specific MDM device status.
   // This will trigger services to fetch data for these accounts again.
   using std::swap;
-  std::map<std::string, NSDictionary*> cached_mdm_infos;
+  std::map<CoreAccountId, NSDictionary*> cached_mdm_infos;
   swap(cached_mdm_infos_, cached_mdm_infos);
 
   if (!cached_mdm_infos.empty()) {
@@ -201,7 +202,7 @@ void AuthenticationService::UpdateHaveAccountsChangedWhileInBackground() {
   // Load accounts from preference before synchronizing the accounts with
   // the system, otherwiser we would never detect any changes to the list
   // of accounts.
-  std::vector<std::string> last_foreground_accounts =
+  std::vector<CoreAccountId> last_foreground_accounts =
       GetLastKnownAccountsFromForeground();
   std::sort(last_foreground_accounts.begin(), last_foreground_accounts.end());
 
@@ -214,7 +215,7 @@ void AuthenticationService::UpdateHaveAccountsChangedWhileInBackground() {
 
   std::vector<CoreAccountInfo> current_accounts_info =
       identity_manager_->GetAccountsWithRefreshTokens();
-  std::vector<std::string> current_accounts;
+  std::vector<CoreAccountId> current_accounts;
   for (const CoreAccountInfo& account_info : current_accounts_info)
     current_accounts.push_back(account_info.account_id);
   std::sort(current_accounts.begin(), current_accounts.end());
@@ -239,11 +240,11 @@ void AuthenticationService::MigrateAccountsStoredInPrefsIfNeeded() {
     return;
   }
 
-  std::vector<std::string> account_ids = GetLastKnownAccountsFromForeground();
+  std::vector<CoreAccountId> account_ids = GetLastKnownAccountsFromForeground();
   std::vector<base::Value> accounts_pref_value;
-  for (const std::string& account_id : account_ids) {
+  for (const auto& account_id : account_ids) {
     if (identity_manager_->HasAccountWithRefreshToken(account_id)) {
-      accounts_pref_value.emplace_back(account_id);
+      accounts_pref_value.emplace_back(account_id.id);
     } else {
       // The account for |email| was removed since the last application cold
       // start. Insert |kFakeAccountIdForRemovedAccount| to ensure
@@ -268,16 +269,16 @@ void AuthenticationService::StoreKnownAccountsWhileInForeground() {
                      base::Value(std::move(accounts_pref_value)));
 }
 
-std::vector<std::string>
+std::vector<CoreAccountId>
 AuthenticationService::GetLastKnownAccountsFromForeground() {
   const base::Value* accounts_pref =
       pref_service_->GetList(prefs::kSigninLastAccounts);
 
-  std::vector<std::string> accounts;
+  std::vector<CoreAccountId> accounts;
   for (const auto& value : accounts_pref->GetList()) {
     DCHECK(value.is_string());
     DCHECK(!value.GetString().empty());
-    accounts.push_back(value.GetString());
+    accounts.push_back(CoreAccountId(value.GetString()));
   }
   return accounts;
 }

ios/chrome/browser/signin/authentication_service_unittest.mm

@@ -65,6 +65,10 @@ std::unique_ptr<KeyedService> BuildMockSyncSetupService(
       ProfileSyncServiceFactory::GetForBrowserState(browser_state));
 }
 
+CoreAccountId GetAccountId(ChromeIdentity* identity) {
+  return CoreAccountId(base::SysNSStringToUTF8([identity gaiaID]));
+}
+
 }  // namespace
 
 class AuthenticationServiceTest : public PlatformTest {
@@ -112,7 +116,7 @@ class AuthenticationServiceTest : public PlatformTest {
     authentication_service()->StoreKnownAccountsWhileInForeground();
   }
 
-  std::vector<std::string> GetLastKnownAccountsFromForeground() {
+  std::vector<CoreAccountId> GetLastKnownAccountsFromForeground() {
     return authentication_service()->GetLastKnownAccountsFromForeground();
   }
 
@@ -134,14 +138,13 @@ class AuthenticationServiceTest : public PlatformTest {
   }
 
   void SetCachedMDMInfo(ChromeIdentity* identity, NSDictionary* user_info) {
-    authentication_service()
-        ->cached_mdm_infos_[base::SysNSStringToUTF8([identity gaiaID])] =
+    authentication_service()->cached_mdm_infos_[GetAccountId(identity)] =
         user_info;
   }
 
   bool HasCachedMDMInfo(ChromeIdentity* identity) {
     return authentication_service()->cached_mdm_infos_.count(
-               base::SysNSStringToUTF8([identity gaiaID])) > 0;
+               GetAccountId(identity)) > 0;
   }
 
   AuthenticationService* authentication_service() {
@@ -249,7 +252,7 @@ TEST_F(AuthenticationServiceTest, TestHandleForgottenIdentityPromptSignIn) {
 
 TEST_F(AuthenticationServiceTest, StoreAndGetAccountsInPrefs) {
   // Profile starts empty.
-  std::vector<std::string> accounts = GetLastKnownAccountsFromForeground();
+  std::vector<CoreAccountId> accounts = GetLastKnownAccountsFromForeground();
   EXPECT_TRUE(accounts.empty());
 
   // Sign in.
@@ -261,8 +264,8 @@ TEST_F(AuthenticationServiceTest, StoreAndGetAccountsInPrefs) {
   StoreKnownAccountsWhileInForeground();
   accounts = GetLastKnownAccountsFromForeground();
   ASSERT_EQ(2u, accounts.size());
-  EXPECT_EQ("foo2ID", accounts[0]);
-  EXPECT_EQ("fooID", accounts[1]);
+  EXPECT_EQ(CoreAccountId("foo2ID"), accounts[0]);
+  EXPECT_EQ(CoreAccountId("fooID"), accounts[1]);
 }
 
 TEST_F(AuthenticationServiceTest,
@@ -281,8 +284,8 @@ TEST_F(AuthenticationServiceTest,
       identity_manager()->GetAccountsWithRefreshTokens();
   std::sort(accounts.begin(), accounts.end(), account_compare_func);
   ASSERT_EQ(2u, accounts.size());
-  EXPECT_EQ("foo2ID", accounts[0].account_id);
-  EXPECT_EQ("fooID", accounts[1].account_id);
+  EXPECT_EQ(CoreAccountId("foo2ID"), accounts[0].account_id);
+  EXPECT_EQ(CoreAccountId("fooID"), accounts[1].account_id);
 
   // Simulate a switching to background and back to foreground, triggering a
   // credentials reload.
@@ -294,9 +297,9 @@ TEST_F(AuthenticationServiceTest,
   accounts = identity_manager()->GetAccountsWithRefreshTokens();
   std::sort(accounts.begin(), accounts.end(), account_compare_func);
   ASSERT_EQ(3u, accounts.size());
-  EXPECT_EQ("foo2ID", accounts[0].account_id);
-  EXPECT_EQ("foo3ID", accounts[1].account_id);
-  EXPECT_EQ("fooID", accounts[2].account_id);
+  EXPECT_EQ(CoreAccountId("foo2ID"), accounts[0].account_id);
+  EXPECT_EQ(CoreAccountId("foo3ID"), accounts[1].account_id);
+  EXPECT_EQ(CoreAccountId("fooID"), accounts[2].account_id);
 }
 
 TEST_F(AuthenticationServiceTest, HaveAccountsChanged_Default) {
@@ -429,7 +432,7 @@ TEST_F(AuthenticationServiceTest, MDMErrorsClearedOnForeground) {
   GoogleServiceAuthError error(
       GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
   signin::UpdatePersistentErrorOfRefreshTokenForAccount(
-      identity_manager(), base::SysNSStringToUTF8([identity(0) gaiaID]), error);
+      identity_manager(), GetAccountId(identity(0)), error);
 
   // MDM error for |identity_| is being cleared and the error state of refresh
   // token will be updated.
@@ -482,7 +485,7 @@ TEST_F(AuthenticationServiceTest, HandleMDMNotification) {
   GoogleServiceAuthError error(
       GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
   signin::UpdatePersistentErrorOfRefreshTokenForAccount(
-      identity_manager(), base::SysNSStringToUTF8([identity(0) gaiaID]), error);
+      identity_manager(), GetAccountId(identity(0)), error);
 
   NSDictionary* user_info1 = @{ @"foo" : @1 };
   ON_CALL(*identity_service(), GetMDMDeviceStatus(user_info1))
@@ -518,7 +521,7 @@ TEST_F(AuthenticationServiceTest, HandleMDMBlockedNotification) {
   GoogleServiceAuthError error(
       GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
   signin::UpdatePersistentErrorOfRefreshTokenForAccount(
-      identity_manager(), base::SysNSStringToUTF8([identity(0) gaiaID]), error);
+      identity_manager(), GetAccountId(identity(0)), error);
 
   NSDictionary* user_info1 = @{ @"foo" : @1 };
   ON_CALL(*identity_service(), GetMDMDeviceStatus(user_info1))
@@ -576,7 +579,7 @@ TEST_F(AuthenticationServiceTest, ShowMDMErrorDialog) {
   GoogleServiceAuthError error(
       GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
   signin::UpdatePersistentErrorOfRefreshTokenForAccount(
-      identity_manager(), base::SysNSStringToUTF8([identity(0) gaiaID]), error);
+      identity_manager(), GetAccountId(identity(0)), error);
 
   NSDictionary* user_info = [NSDictionary dictionary];
   SetCachedMDMInfo(identity(0), user_info);

ios/chrome/browser/ui/authentication/authentication_flow_performer.mm

@@ -336,9 +336,9 @@ const int64_t kAuthenticationFlowTimeoutSeconds = 10;
 - (BOOL)shouldHandleMergeCaseForIdentity:(ChromeIdentity*)identity
                             browserState:
                                 (ios::ChromeBrowserState*)browserState {
-  std::string lastSignedInAccountId =
-      browserState->GetPrefs()->GetString(prefs::kGoogleServicesLastAccountId);
-  std::string currentSignedInAccountId =
+  CoreAccountId lastSignedInAccountId(
+      browserState->GetPrefs()->GetString(prefs::kGoogleServicesLastAccountId));
+  CoreAccountId currentSignedInAccountId =
       IdentityManagerFactory::GetForBrowserState(browserState)
           ->PickAccountIdForAccount(
               base::SysNSStringToUTF8([identity gaiaID]),

ios/chrome/browser/ui/authentication/chrome_signin_view_controller.mm

@@ -259,7 +259,7 @@ enum AuthenticationState {
   int consent_confirmation_id = showAccountsSettings
                                     ? openSettingsStringId
                                     : [self acceptSigninButtonStringId];
-  std::string account_id =
+  CoreAccountId account_id =
       IdentityManagerFactory::GetForBrowserState(self.browserState)
           ->PickAccountIdForAccount(
               base::SysNSStringToUTF8([_selectedIdentity gaiaID]),