Roll external/skia bcd07230e..21d0e8b0a (8 commits)

https://skia.googlesource.com/skia.git/+log/bcd07230e..21d0e8b0a

2018-01-31 fmalita@chromium.org [skottie] Clamp SkCubicMap results to [0,1]
2018-01-31 fmalita@chromium.org [sksg] Initial text support
2018-01-31 angle-skia-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com Roll skia/third_party/externals/angle2/ 191a84a83..61d5325e6 (1 commit)
2018-01-31 reed@google.com add saturate helper for float2int64
2018-01-31 rmistry@google.com Add script that registers an Android compile task and waits for it to complete
2018-01-31 robertphillips@google.com Add SkSurface_Gpu::MakeWrappedRenderTarget method
2018-01-31 halcanary@google.com SkQP:  report, use `image-rendering:pixelated`
2018-01-31 angle-skia-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com Roll skia/third_party/externals/angle2/ 9bf555277..191a84a83 (1 commit)

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https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
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Test: Presubmit checks will test this change.
Change-Id: I4ec5be89da5e9c05435e56b4e8f9a6e613c5ffba
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diff --git a/Android.bp b/Android.bp
index 9b7dd9b..c0384f5 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1068,6 +1068,7 @@
         "experimental/sksg/geometry/SkSGMerge.cpp",
         "experimental/sksg/geometry/SkSGPath.cpp",
         "experimental/sksg/geometry/SkSGRect.cpp",
+        "experimental/sksg/geometry/SkSGText.cpp",
         "experimental/sksg/geometry/SkSGTrimEffect.cpp",
         "experimental/sksg/paint/SkSGColor.cpp",
         "experimental/sksg/paint/SkSGGradient.cpp",
@@ -1991,6 +1992,7 @@
         "experimental/sksg/geometry/SkSGMerge.cpp",
         "experimental/sksg/geometry/SkSGPath.cpp",
         "experimental/sksg/geometry/SkSGRect.cpp",
+        "experimental/sksg/geometry/SkSGText.cpp",
         "experimental/sksg/geometry/SkSGTrimEffect.cpp",
         "experimental/sksg/paint/SkSGColor.cpp",
         "experimental/sksg/paint/SkSGGradient.cpp",