Roll ANGLE 09cfac6..415f29e

https://chromium.googlesource.com/angle/angle.git/+log/09cfac6..415f29e

BUG=

TBR=geofflang@chromium.org

TEST=bots

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2347683002
Cr-Commit-Position: refs/heads/master@{#418995}

DEPS

@@ -48,7 +48,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': '09cfac606ef5ca64cb657fd03cbc110a44c34fe6',
+  'angle_revision': '415f29e0cd01a9c93423e1b04b70d42987905929',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build tools
   # and whatever else without interference from each other.