Roll src/third_party/skia ce62dec02293..249a25730521 (15 commits) (#7879)

https://skia.googlesource.com/skia.git/%2Blog/ce62dec02293..249a25730521

git log ce62dec02293670e2941be8bef87b8f3d5da6c35..249a2573052167220fdb90828a5df43bfcaa3a07 --date=short --no-merges --format=%ad %ae %s
2019-02-19 robertphillips@google.com Fix bookmaker dox for SkSurface::MakeRenderTarget
2019-02-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 6397ed0fc311..0a60818466f1 (2 commits)
2019-02-19 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-02-19 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-02-15 bungeman@google.com Make SkShaper an interface.
2019-02-19 brianosman@google.com Fix layout feedback loop in particle GUI
2019-02-19 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-02-19 michaelludwig@google.com Only perform matrix concat when actually logging histograms
2019-02-19 brianosman@google.com Add comments to document SkCurve
2019-02-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader a63e5f9685a6..6397ed0fc311 (1 commits)
2019-02-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src ee506c5149cb..bf1a36e53e69 (229 commits)
2019-02-19 brianosman@google.com First pass comments to document SkReflected.h
2019-02-19 herb@google.com Clarify parameter naming for setMinAndMaxScale
2019-02-19 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-02-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 24021a2d7ea5..a63e5f9685a6 (1 commits)

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-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 (jvanverth@google.com), and stop
the roller if necessary.

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': 'ce62dec02293670e2941be8bef87b8f3d5da6c35',
+  'skia_revision': '249a2573052167220fdb90828a5df43bfcaa3a07',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

-Signature: a26275873f3c9ff43b88472a8529a9fd
+Signature: 065d625f48aad9c609619d5839bea2e2
 
 UNUSED LICENSES: