Roll src/third_party/skia 723b050:98ed7b6
Roll src/third_party/skia 723b050:98ed7b6

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/723b050..98ed7b6

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

Commits in this roll:
98ed7b6 reed@google.com create SkBitmapProvider to abstract images and bitmaps
5598b63 fmalita@chromium.org Convert unit tests, GMs from SkBitmapSource to SkImagesource
30c4cae robertphillips@google.com Add special case circle blur for Ganesh
de5973b mtklein@chromium.org small tweaks to cmake_build

Review URL: https://codereview.chromium.org/1341793006

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#349009}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk