Roll src/third_party/skia ef2df09:e3330cf

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/ef2df09..e3330cf

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

Commits in this roll:
e3330cf jcgregorio@google.com Revert of Scanline decoding for gifs (patchset #15 id:380001 of https://codereview.chromium.org/1305123002/ )

Review URL: https://codereview.chromium.org/1312443003

Cr-Commit-Position: refs/heads/master@{#347577}

DEPS

@@ -35,7 +35,7 @@ vars = {
   'chromium_git': 'https://chromium.googlesource.com',
   'libvpx_revision': '0304cef02fe5e94b63e7e78ddb263d91ca32d533',
   'sfntly_revision': '1bdaae8fc788a5ac8936d68bf24f37d977a13dac',
-  'skia_revision': 'ef2df09997f5afa836bbffdab1ff732d0c766a93',
+  'skia_revision': 'e3330cf2cf361c146af7009301612b4010f82195',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.