sync: use integer division with job counts
sync: use integer division with job counts

Neither of the fields here expect floats so make sure we use integer
division when calculating things.

Bug: https://crbug.com/gerrit/10418
Change-Id: Ibda068b16a7bba7ff3efba442c4bbff4415caa6e

lipro-yocto/git-repo,couchbasedeps/git-repo,couchbasedeps/git-repo,GerritCodeReview/git-repo,mer-tools/git-repo,lipro-yocto/git-repo,GerritCodeReview/git-repo,TheQtCompany/git-repo,lewixliu/git-repo,codetutil/git-repo,aosp-mirror/tools_repo,codetutil/git-repo,gabbayo/git-repo,gabbayo/git-repo,TheQtCompany/git-repo,lewixliu/git-repo,aosp-mirror/tools_repo,mer-tools/git-repo