add flag to help remove overrides of drawSprite
add flag to help remove overrides of drawSprite

BUG=
NOTRY=True
TBR=
just adds a temp flag to allow skia deps roll

Review URL: https://codereview.chromium.org/1527373003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#365544}

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