Transition to using size_t for only byte allocation sizes.

This will simplify coming refactorings, and make the code
similar to the image blur code.

Change-Id: I4d61ac21e3428b0e4fce03159c66539b9b032fe7
Reviewed-on: https://skia-review.googlesource.com/81961
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Herb Derby <herb@google.com>
1 file changed