Skia: ANGLE Roll

Includes fix for vertex index.

BUG=510585

Review URL: https://codereview.chromium.org/1246143005
diff --git a/DEPS b/DEPS
index 370976b..4439cb0 100644
--- a/DEPS
+++ b/DEPS
@@ -8,7 +8,7 @@
   # There is some duplication here that might be worth cleaning up:
   #   - can use use our existing t_p/e/libjpeg instead of pulling it for Android?
 
-  "third_party/externals/angle2"  : "https://chromium.googlesource.com/angle/angle.git@01c796ac8e363ae953797f9cf316ec17dc477e87",
+  "third_party/externals/angle2"  : "https://chromium.googlesource.com/angle/angle.git@f9ac8fea307532e31cba6240801b4a56483591f8",
   "third_party/externals/freetype": "https://skia.googlesource.com/third_party/freetype2.git@VER-2-5-0-1",
   "third_party/externals/gyp"     : "https://chromium.googlesource.com/external/gyp.git@08429da7955a98ef764fafa223dd7de73f654b2d",
   "third_party/externals/harfbuzz": "https://skia.googlesource.com/third_party/harfbuzz.git@0.9.35",