The Washington County coroner's office said 21-year-old Shanice Clark of Toronto was found unresponsive at about 3 a.m. Sunday.
University officials said they were "deeply saddened" by the death of the six-foot senior forward.
California borough police say a preliminary report from medical personnel indicated that the death appeared to be accidental.
An autopsy was conducted Monday.
Although the coroner didn't immediately release the results, police say medical personnel indicated Clark aspirated the chewing gum while sleeping.