Paint buffered range that is within delta from CT      This patch make sure to avoid cases where the current position and buffered ranges are slightly out of sync and the buffered ranges would not be painted
Paint buffered range that is within delta from CT
    
This patch make sure to avoid cases where the current position and buffered ranges are slightly out of sync and the buffered ranges would not be painted

BUG=460904

Review URL: https://codereview.chromium.org/982553002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@191830 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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