It all comes down to whether the officer considers this a reasonable amount of vacation time.
An allowance for a reasonable period of vacation time will generally be made in calculating the period of qualifying work experience (e.g., a two-week period of paid vacation leave within a given 52-week period in which the applicant was engaged in qualifying work experience). While officers will account for a reasonable period of vacation time in calculating the period of qualifying work experience in Canada, each application is considered on its own merits with a final decision based on a review of all the information available to the officer at the time of decision.
http://www.cic.gc.ca/english/resources/tools/perm/econ/cec/work.asp