move some methods out of line

This started because I noticed some repeated symbols while disassembling
object files.  I decided to fix up one or two to kill time while waiting
for Blink layout tests, but then I got a little quixotic.  In the end, I
ran:

    ninja -C out && git add -u && nm -U -j out/obj/gm/gm.*.o | sort | uniq -c | sort -g | c++filt | less

And then outlined things that stuck out as funny, either because they
were big, because they were virtual, because there were many copies of
them, or some combination of those factors.

I'm on the fence about moving a few of SkRefCnt's virtuals out of line,
so I've left SkRefCnt.h unchanged for now.

I'm not sure that this is important.

Change-Id: I425d05aa4beabbae40dd8df465155bfb909ef43a
Reviewed-on: https://skia-review.googlesource.com/c/190422
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
8 files changed