Add include guards to SkGetExecutablePath.h.
Add include guards to SkGetExecutablePath.h.

Change-Id: I8b86be22b31acd8edebbe36d16a03fc899237af4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/596478
Commit-Queue: Ben Wagner <53965154ffeecc4a10886eab9259e95965f2979a@google.com>
Auto-Submit: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
Commit-Queue: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
Reviewed-by: Ben Wagner <53965154ffeecc4a10886eab9259e95965f2979a@google.com>

google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia