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Also, update bug numbers for other crashes in virtual/gpu/fast/canvas/.

BUG=454267,522315
TBR=leviw@chromium.org

Review URL: https://codereview.chromium.org/1295413003 .

git-svn-id: svn://svn.chromium.org/blink/trunk@200773 bbb929c8-8fbe-4397-9dbb-9b2b20218538