Rearranging ASSERT in Canvas2DLayerBridge
Rearranging ASSERT in Canvas2DLayerBridge

This is a post-commit follow-up to review comments on
https://codereview.chromium.org/821743002/

BUG=443476
TBR=danakj@chromium.org

Review URL: https://codereview.chromium.org/803173008

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@187662 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs