Move all pointer id types to PointerId

To clean the code and possibly fix a hashmap
crash issue this CL moves all the pointer id
types which are int in some places and int32_t
in some other places to PointerId.

Bug: 921325
Change-Id: I91f7837c339a61194337c82fba5f383778d6c847
Reviewed-on: https://chromium-review.googlesource.com/c/1418436
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Reviewed-by: Mustaq Ahmed <mustaq@chromium.org>
Commit-Queue: Navid Zolghadr <nzolghadr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#624636}
9 files changed