[Webkit-unassigned] [Bug 102758] New: [Blackberry] When a frame is being detached, cancel all its network jobs.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=102758

           Summary: [Blackberry] When a frame is being detached, cancel
                    all its network jobs.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit BlackBerry
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: chris.guan at torchmobile.com.cn


When a frame is being detached, cancel all its network jobs with exception of
PingLoader.

This is a follow-up of RIM PR134207.

Each NetworkJob contains a pointer to Frame. The safety relies on the
assumption that FrameLoader::stopAllLoaders() always cancels all network jobs
that belongs to the frame (except PingLoader, for which we unlink the
NetworkJob from the Frame, so it is safe). If one day that is no longer true,
we are in trouble.

We already maintain the full list of active NetworkJob in the NetworkManager
skeleton. So it is easy to cancel all network jobs that link to the
falling-down Frame if any, or clear their m_frame pointers... At least we
should assert no such NetworkJob exists in debug build.

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