Roll ANGLE from c3ccd3a79714 to 308078b0ca18 (8 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/c3ccd3a79714..308078b0ca18

2020-07-27 jmadill@chromium.org Tests: Add getProcAddress method to GLWindowBase.
2020-07-27 tobine@google.com Vulkan:Enable Validation best practices layer
2020-07-27 cclao@google.com Vulkan: Make mDefaultUniformStorage per ContextVk
2020-07-27 flibitijibibo@gmail.com Add GGP to Platform Support table
2020-07-27 msisov@igalia.com X11: cast native display type to XDisplay.
2020-07-27 nguyenmh@google.com Update CaptureAndReplay.md and Python script with links
2020-07-27 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 6a8a74986c35 to 3b2cd31c7400 (9 revisions)
2020-07-27 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-ValidationLayers from adf938680697 to 361fb5311b9b (13 revisions)

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 tobine@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: chromium:1085700
Tbr: tobine@google.com
Change-Id: Ib7f3eb5a62663714756fb4ba5b3fac0029cb91a7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321089Reviewed-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@{#792031}

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': 'c3ccd3a797140247e75904539782fa1d4701ca1c',
+  'angle_revision': '308078b0ca1833b5b9ce78eb78f2587e61d1307e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.