Roll ANGLE from cd5489ad46bd to d9818fd6fc72 (6 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/cd5489ad46bd..d9818fd6fc72

2020-07-21 syoussefi@chromium.org Vulkan: Improve RenderTargetVk's getImage interface
2020-07-21 timvp@google.com Generate Android.bp from multiple gn descriptions
2020-07-21 timvp@google.com Use Subject/Observer pattern for Programs/Executables in PPOs
2020-07-21 syoussefi@chromium.org Vulkan: Make room in RenderPassDesc for resolve attachments
2020-07-21 ianelliott@google.com Vulkan: Make explicitly-[non-]rotated get methods
2020-07-21 cclao@google.com Vulkan: No need to add current buffer into mResourceUseList

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-chromium-autoroll
Please CC timvp@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win-asan;luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:linux-swangle-try-x64;luci.chromium.try:win-swangle-try-x86
Bug: None
Tbr: timvp@google.com
Test: Test: CQTest: Test: Manual script execution and building in AOSP
Change-Id: I6fa05299f4c886112324ce0212b5177b1e02287c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2309273Reviewed-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@{#790324}

DEPS

@@ -207,7 +207,7 @@ 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': 'cd5489ad46bd1a3f9e80073a8cb1760ed8b17f96',
+  'angle_revision': 'd9818fd6fc7244e922f35ba6253296a33b49c991',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.