Roll src/third_party/skia bdb0bf5:9c79820

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/bdb0bf5..9c79820

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
TBR=jcgregorio@google.com

Review URL: https://codereview.chromium.org/1098463002

Cr-Commit-Position: refs/heads/master@{#325500}

DEPS

@@ -42,7 +42,7 @@ vars = {
   'boringssl_git': 'https://boringssl.googlesource.com',
   'libvpx_revision': '1fff3e3550a605f7edf72280ed8fcaa83eeb586e',
   'sfntly_revision': '1bdaae8fc788a5ac8936d68bf24f37d977a13dac',
-  'skia_revision': 'bdb0bf5f8858043878d8a4fa8130c6c87bef3fd4',
+  'skia_revision': '9c798207b7c710148d7f2989e877a7ece62edd5e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.