Source/WebKit/UIProcess/WebProcessProxy.messages.in

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messages -> WebProcessProxy LegacyReceiver {
    UpdateBackForwardItem(struct WebKit::BackForwardListItemState backForwardListItemState)
    DidDestroyFrame(uint64_t frameID) 

    DidDestroyUserGestureToken(uint64_t userGestureTokenID) 

    ShouldTerminate() -> (bool shouldTerminate)

    EnableSuddenTermination()
    DisableSuddenTermination()

    # Plugin messages.
#if ENABLE(NETSCAPE_PLUGIN_API)
    GetPlugins(bool refresh) -> (Vector<WebCore::PluginInfo> plugins, Vector<WebCore::PluginInfo> applicationPlugins, struct std::optional<Vector<WebCore::SupportedPluginName>> supportedPluginNames)
    GetPluginProcessConnection(uint64_t pluginProcessToken) -> (IPC::Attachment connectionHandle, bool supportsAsynchronousInitialization) Delayed
#endif
    GetNetworkProcessConnection() -> (IPC::Attachment connectionHandle) Delayed
    GetStorageProcessConnection(PAL::SessionID initialSessionID) -> (IPC::Attachment connectionHandle) Delayed
    ProcessReadyToSuspend()
    DidCancelProcessSuspension()

    SetIsHoldingLockedFiles(bool isHoldingLockedFiles)

    DidExceedActiveMemoryLimit()
    DidExceedInactiveMemoryLimit()
    DidExceedCPULimit()

    TestIncomingSyncIPCMessageWhileWaitingForSyncReply() -> (bool handled)

    StopResponsivenessTimer()

    DidReceiveMainThreadPing()
    DidReceiveBackgroundResponsivenessPing()

    MemoryPressureStatusChanged(bool isUnderMemoryPressure)
    DidExceedInactiveMemoryLimitWhileActive()

    CreateNewMessagePortChannel(struct WebCore::MessagePortIdentifier port1, struct WebCore::MessagePortIdentifier port2)
    EntangleLocalPortInThisProcessToRemote(struct WebCore::MessagePortIdentifier local, struct WebCore::MessagePortIdentifier remote)
    MessagePortDisentangled(struct WebCore::MessagePortIdentifier local)
    MessagePortClosed(struct WebCore::MessagePortIdentifier local)
    TakeAllMessagesForPort(struct WebCore::MessagePortIdentifier port, uint64_t messagesCallbackIdentifier)
    PostMessageToRemote(struct WebCore::MessageWithMessagePorts message, struct WebCore::MessagePortIdentifier remote)
    CheckRemotePortForActivity(struct WebCore::MessagePortIdentifier port, uint64_t callbackIdentifier)
    DidDeliverMessagePortMessages(uint64_t messageBatchIdentifier)
    DidCheckProcessLocalPortForActivity(uint64_t callbackIdentifier, bool isLocallyReachable)
}