Roll src/third_party/skia/ ca37f32c7..4d4b3aaa2 (4 commits)

https://skia.googlesource.com/skia.git/+log/ca37f32c7014..4d4b3aaa20e1

$ git log ca37f32c7..4d4b3aaa2 --date=short --no-merges --format='%ad %ae %s'
2018-03-21 mtklein small ABI + narrow/wide code updates
2018-03-20 bsalomon Remove deprecated version of SkImage::MakeFromAdoptedTexture that does not take SkColorType
2018-03-21 liyuqian Remove legacy precision boundary
2018-03-21 csmartdalton ccpr: Use a more stable formula to find quadratic coordinates

Created with:
  roll-dep src/third_party/skia


The AutoRoll server is located here: https://autoroll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=jvanverth@chromium.org

Change-Id: I2f41b26cb2a6d9bae7db94b163663a83ad85a99b
Reviewed-on: https://chromium-review.googlesource.com/974104Reviewed-by: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#544903}

DEPS

@@ -79,7 +79,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': 'ca37f32c7014a30352f719d84a57cecfd3a93561',
+  'skia_revision': '4d4b3aaa20e1978390c572a49dfcd59a0975c32f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.