PasswordManager: Introduce enum PasswordAccountStorageUserState

The PasswordAccountStorageUserState covers the sign-in state and
account storage opt-in state of the current user. It will be used for
metrics (but is not used yet in this CL).

Bug: 1063852
Change-Id: I85a0e5f310e6b766f8fcc7986c1170cdb9580bc1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2149358
Commit-Queue: Marc Treib <treib@chromium.org>
Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#759630}

components/password_manager/core/browser/password_manager_util.cc

@@ -574,4 +574,36 @@ void ClearAccountStorageSettingsForAllUsers(PrefService* pref_service) {
       password_manager::prefs::kAccountStoragePerAccountSettings);
 }
 
+PasswordAccountStorageUserState ComputePasswordAccountStorageUserState(
+    const PrefService* pref_service,
+    const syncer::SyncService* sync_service) {
+  if (sync_service->IsSyncFeatureEnabled())
+    return PasswordAccountStorageUserState::kSyncUser;
+
+  if (sync_service->HasDisableReason(
+          syncer::SyncService::DisableReason::DISABLE_REASON_NOT_SIGNED_IN)) {
+    // Signed out. Check if any account storage opt-in exists.
+    return ShouldShowAccountStorageReSignin(pref_service, sync_service)
+               ? PasswordAccountStorageUserState::kSignedOutAccountStoreUser
+               : PasswordAccountStorageUserState::kSignedOutUser;
+  }
+
+  bool saving_locally = GetDefaultPasswordStore(pref_service, sync_service) ==
+                        PasswordForm::Store::kProfileStore;
+
+  // Signed in. Check for account storage opt-in.
+  if (IsOptedInForAccountStorage(pref_service, sync_service)) {
+    // Signed in and opted in. Check default storage location.
+    return saving_locally
+               ? PasswordAccountStorageUserState::
+                     kSignedInAccountStoreUserSavingLocally
+               : PasswordAccountStorageUserState::kSignedInAccountStoreUser;
+  }
+
+  // Signed in but not opted in. Check default storage location.
+  return saving_locally
+             ? PasswordAccountStorageUserState::kSignedInUserSavingLocally
+             : PasswordAccountStorageUserState::kSignedInUser;
+}
+
 }  // namespace password_manager_util

components/password_manager/core/browser/password_manager_util.h

@@ -204,6 +204,32 @@ void SetDefaultPasswordStore(PrefService* pref_service,
 // |pref_service| must not be null.
 void ClearAccountStorageSettingsForAllUsers(PrefService* pref_service);
 
+// Represents the state of the user wrt. sign-in and account-scoped storage.
+// Used for metrics.
+enum class PasswordAccountStorageUserState {
+  // Signed-out user (and no account storage opt-in exists).
+  kSignedOutUser,
+  // Signed-out user, but an account storage opt-in exists.
+  kSignedOutAccountStoreUser,
+  // Signed-in user, not opted in to the account storage (but will save
+  // passwords to the account storage by default).
+  kSignedInUser,
+  // Signed-in user, not opted in to the account storage, and has explicitly
+  // chosen to save passwords only on the device.
+  kSignedInUserSavingLocally,
+  // Signed-in user, opted in to the account storage, and saving passwords to
+  // the account storage..
+  kSignedInAccountStoreUser,
+  // Signed-in user and opted in to the account storage, but has chosen to save
+  // passwords only on the device.
+  kSignedInAccountStoreUserSavingLocally,
+  // Syncing user.
+  kSyncUser,
+};
+PasswordAccountStorageUserState ComputePasswordAccountStorageUserState(
+    const PrefService* pref_service,
+    const syncer::SyncService* sync_service);
+
 }  // namespace password_manager_util
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_UTIL_H_