Skia roll 49005bf:9564ce6

https://skia.googlesource.com/skia/+log/49005bf8929dd8ca86431e13414d683b509cd538..9564ce60a657acce89fb956deb8645b324eaad1e

CQ_EXTRA_TRYBOTS=tryserver.blink:linux_blink_rel,linux_blink_dbg
TBR=stephana@google.com

Review URL: https://codereview.chromium.org/578553003

Cr-Commit-Position: refs/heads/master@{#295058}

DEPS

@@ -35,7 +35,7 @@ vars = {
   'boringssl_git': 'https://boringssl.googlesource.com',
   'libvpx_revision': '4947d55857acf2bf968016a7a00fe2b10fd52131',
   'sfntly_revision': '1bdaae8fc788a5ac8936d68bf24f37d977a13dac',
-  'skia_revision': '49005bf8929dd8ca86431e13414d683b509cd538',
+  'skia_revision': '9564ce60a657acce89fb956deb8645b324eaad1e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.