Roll src/third_party/skia cd523eb:34a9895

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/cd523eb..34a9895

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

Review URL: https://codereview.chromium.org/601813002

Cr-Commit-Position: refs/heads/master@{#296442}

DEPS

@@ -35,7 +35,7 @@ vars = {
   'boringssl_git': 'https://boringssl.googlesource.com',
   'libvpx_revision': 'efe9712d52c2d216fb3d1ceb508b8148847a7e4b',
   'sfntly_revision': '1bdaae8fc788a5ac8936d68bf24f37d977a13dac',
-  'skia_revision': 'cd523ebe2be30f268cdcec2d0b59eba609b9901b',
+  'skia_revision': '34a9895baf8b2bf95c4f6944a7914be1a74f1524',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.