Roll src/third_party/skia 78e6a4c1ff67..7b49eeb4960b (6 commits)

https://skia.googlesource.com/skia.git/+log/78e6a4c1ff67..7b49eeb4960b


git log 78e6a4c1ff67..7b49eeb4960b --date=short --no-merges --format='%ad %ae %s'
2019-03-19 fmalita@chromium.org [skottie] Turn on AA for solid layers
2019-03-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 0e712410582f..2dc0303903b1 (1 commits)
2019-03-19 ethannicholas@google.com Revert "more relaxed precision decorations for SPIR-V output"
2019-03-19 halcanary@google.com Docs: fix more case-sensitive names
2019-03-19 fmalita@chromium.org [skottie] Initial camera support
2019-03-19 michaelludwig@google.com Respect strict constraint in drawEdgeAAImageSet


Created with:
  gclient setdep -r src/third_party/skia@7b49eeb4960b

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

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=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@chromium.org

Change-Id: I3fbb870e4018108b6730c9ec5b6cff1ef0256987
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1531343Reviewed-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@{#642302}

DEPS

@@ -129,7 +129,7 @@ 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': '78e6a4c1ff67cb207102dc2839fb02dc1bcaab1e',
+  'skia_revision': '7b49eeb4960b43d0eba7875201dea5fd4aedf363',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.