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- // Copyright 2021 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 COMPONENTS_BACK_FORWARD_CACHE_DISABLED_REASON_ID_H_
- #define COMPONENTS_BACK_FORWARD_CACHE_DISABLED_REASON_ID_H_
- #include <cstdint>
- namespace back_forward_cache {
- // Reasons to disable BackForwardCache for this frame for chrome features.
- enum class DisabledReasonId : uint16_t {
- // These values are persisted to logs. Entries should not be renumbered and
- // numeric values should never be reused. kMaxValue is not defined because
- // this enum is not logged directly as an enum (see
- // BackForwardCache::DisabledSource).
- kUnknown = 0,
- kPopupBlockerTabHelper = 1,
- kSafeBrowsingTriggeredPopupBlocker = 2,
- kSafeBrowsingThreatDetails = 3,
- kAppBannerManager = 4,
- kDomDistillerViewerSource = 5,
- kDomDistiller_SelfDeletingRequestDelegate = 6,
- kOomInterventionTabHelper = 7,
- kOfflinePage = 8,
- kChromePasswordManagerClient_BindCredentialManager = 9,
- kPermissionRequestManager = 10,
- // Modal dialog such as form resubmittion or http password dialog is shown for
- // the page.
- kModalDialog = 11,
- // Support for extensions is added in stages (see crbug.com/1110891), each
- // with its own enum.
- // - kExtensions: All extensions are blocklisted.
- // - kExtensionMessaging: Extensions using messaging APIs are blocklisted.
- // - kExtensionMessagingForOpenPort: Extensions using long-lived connections
- // that don't close the connection before attempting to cache the frame are
- // blocklisted.
- // - kExtensionSentMessageToCachedFrame: Extensions using long-lived
- // connections that attempt to send a message to a frame while it is cached
- // (inactive) are blocklisted.
- kExtensions = 12,
- kExtensionMessaging = 13,
- kExtensionMessagingForOpenPort = 14,
- kExtensionSentMessageToCachedFrame = 15,
- // New reasons should be accompanied by a comment as to why BackForwardCache
- // cannot be used in this case and a link to a bug to fix that if it is
- // fixable.
- // Any updates here should be reflected in tools/metrics/histograms/enums.xml
- };
- } // namespace back_forward_cache
- #endif // COMPONENTS_BACK_FORWARD_CACHE_DISABLED_REASON_ID_H_
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