[Webkit-unassigned] [Bug 250469] New: Retain the shmem used for serialising WebCore::Font

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=250469

            Bug ID: 250469
           Summary: Retain the shmem used for serialising WebCore::Font
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Text
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mattwoodrow at apple.com
                CC: mmaxfield at apple.com,
                    webkit-bug-importer at group.apple.com

<rdar://100866403>

We're currently copying Font creationData across IPC using shmem (as part of the FragmentedSharedBuffer serialisation), but we then copy it back into local memory.

This adds an extra copy, but also means we can't attribute the memory to the WebContent process that owns the Font.

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