← WebKit — 2026-W37
1a3eac178b9ff4fdaeec15ca3d3767a788990d33 REGRESSION(320153@main) 2D context self drawImage performance regression
not a security fix
confidence 0.12
signal score 6.47
Source/WebCore/html
Classified as not security-relevant.
Triage note: Refactors ImageBuffer backend ownership: removes lazy ensureBackend()/m_backendInfo, requires backend at construction, renames ImageBufferBackendParameters->ImageBufferParameters, moves renderingMode/memoryCost to virtuals, adds NullImageBufferBackend type trait. Structural refactor with incidental RefPtr protections; no identified bug.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Triage note: Refactors ImageBuffer backend ownership: removes lazy ensureBackend()/m_backendInfo, requires backend at construction, renames ImageBufferBackendParameters->ImageBufferParameters, moves renderingMode/memoryCost to virtuals, adds NullImageBufferBackend type trait. Structural refactor with incidental RefPtr protections; no identified bug.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Structural signals: smartptr_member_added (+6.47), area:Source/WebCore/html (+2.0), large_churn (-2.0)
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