Manual Roll WebGL dd55f3c..53655df

Manual roll of WebGL to certain commit (not latest) because
https://github.com/KhronosGroup/WebGL/pull/2978 would cause bot failure and the fix
https://github.com/KhronosGroup/WebGL/pull/2980 hasn't been merged.

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/dd55f3c..53655df

TBR=kbr@chromium.org
Bug: 1000354, 1003860

Cq-Include-Trybots: luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux-angle-rel;luci.chromium.try:win-angle-rel-32;luci.chromium.try:win-angle-rel-64
Change-Id: I0164f91032d4c0ab21f059eff5bfbb81d85cf28f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1976152Reviewed-by: Shrek Shao <shrekshao@google.com>
Commit-Queue: Shrek Shao <shrekshao@google.com>
Cr-Commit-Position: refs/heads/master@{#726513}

DEPS

@@ -1480,7 +1480,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/SeleniumHQ/selenium/py.git' + '@' + 'd0045ec570c1a77612db35d1e92f05e1d27b4d53',
 
   'src/third_party/webgl/src':
-    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'dd55f3ca8f2ea716ca917a4aaf36f0729fe902b1',
+    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '53655df4cde60b121fc530842ba9a6d5dfec1ae1',
 
   'src/third_party/webrtc':
     Var('webrtc_git') + '/src.git' + '@' + '768c5f438cad7b65a05f8a9fe79d4049329e5475',

content/test/gpu/gpu_tests/webgl_conformance_revision.txt

 # AUTOGENERATED FILE - DO NOT EDIT
 # SEE roll_webgl_conformance.py
-Current webgl revision dd55f3ca8f2ea716ca917a4aaf36f0729fe902b1
+Current webgl revision 53655df4cde60b121fc530842ba9a6d5dfec1ae1