[webkit-changes] [WebKit/WebKit] ddea8b: [macOS] UI process sometimes crashes under ViewGes...

[Wenson Hsieh]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: ddea8b1d5e51cd0aa4317db9277a275b17126063
      https://github.com/WebKit/WebKit/commit/ddea8b1d5e51cd0aa4317db9277a275b17126063
  Author: Wenson Hsieh <wenson_hsieh at apple.com>
  Date:   2025-02-11 (Tue, 11 Feb 2025)

  Changed paths:
    M Source/WebKit/UIProcess/ViewGestureController.cpp

  Log Message:
  -----------
  [macOS] UI process sometimes crashes under ViewGestureController::disconnectFromProcess()
https://bugs.webkit.org/show_bug.cgi?id=287493
rdar://143899055

Reviewed by Charlie Wolfe and Abrar Rahman Protyasha.

Null check `m_mainFrameProcess` before attempting to remove the `ViewGestureController` message
receiver. In the case where the main `WebProcessProxy` outlives the controller, `WebProcessProxy`
teardown should already have cleaned up message receivers (and invoked any messages pending reply)
anyways, so it should be safe to avoid this removal step.

* Source/WebKit/UIProcess/ViewGestureController.cpp:
(WebKit::ViewGestureController::disconnectFromProcess):

Canonical link: https://commits.webkit.org/290239@main



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