Roll src/third_party/skia 17a3a0bda946..e2a903e18b59 (7 commits)

https://skia.googlesource.com/skia.git/+log/17a3a0bda946..e2a903e18b59

git log 17a3a0bda946..e2a903e18b59 --date=short --no-merges --format='%ad %ae %s'
2019-09-18 csmartdalton@google.com Reland "Reorder msaa and mipmap resolves to happen all at once"
2019-09-18 bsalomon@google.com Handle F16Norm clamping in SkPaint->GrPaint conversion.
2019-09-18 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-09-18 mtklein@google.com move skvm debug tools back to core
2019-09-18 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-09-18 herb@google.com Reland "SkZip - synchronized indexing of several pointers"
2019-09-18 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).

Created with:
  gclient setdep -r src/third_party/skia@e2a903e18b59

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-autoroll
Please CC brianosman@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

CQ_INCLUDE_TRYBOTS=luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux-blink-rel;luci.chromium.try:linux-chromeos-compile-dbg;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
TBR=brianosman@google.com

Bug: None
Change-Id: I70e3704c9eedcda905998e98d267ab01b398ff72
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1811977Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#697834}

DEPS

@@ -162,7 +162,7 @@ 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': '17a3a0bda946b807a6b9003b0062cc5855a76127',
+  'skia_revision': 'e2a903e18b5963379bff86ff505a840cf1b52352',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.