Roll WebGL 21dbf06..7ca87fb

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/21dbf06..7ca87fb

TBR=kbr@chromium.org

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_ng;luci.chromium.try:win_angle_rel_ng
Change-Id: I53d5e93d572b2b89105cce330c6d79e26caff1f3
Reviewed-on: https://chromium-review.googlesource.com/1169959
Commit-Queue: Fernando Serboncini <fserb@chromium.org>
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583504}

DEPS

@@ -1046,7 +1046,7 @@ deps = {
     Var('chromium_git') + '/external/selenium/py.git' + '@' + '5fd78261a75fe08d27ca4835fb6c5ce4b42275bd',
 
   'src/third_party/webgl/src':
-    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '21dbf06b5aa6c7dc8cf56314d4a3f96f57956c53',
+    Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7ca87fb1d3da3b3d2060886e8c58e726d74c8219',
 
   'src/third_party/webrtc':
     Var('webrtc_git') + '/src.git' + '@' + 'b336c2784f5e1e6e2f59e62a18b2d0e21a555b41',

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -43,6 +43,11 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     # Conformance expectations
     # ========================
 
+    # Failing new test
+    self.Fail(
+        'conformance2/glsl3/const-struct-from-array-as-function-parameter.html',
+        bug=874620)
+
     # Failing new test added in https://github.com/KhronosGroup/WebGL/pull/2665
     self.Fail('conformance2/textures/misc/tex-subimage3d-canvas-bug.html',
               ['linux'], bug=859400)

content/test/gpu/gpu_tests/webgl_conformance_revision.txt

 # AUTOGENERATED FILE - DO NOT EDIT
 # SEE roll_webgl_conformance.py
-Current webgl revision 21dbf06b5aa6c7dc8cf56314d4a3f96f57956c53
+Current webgl revision 7ca87fb1d3da3b3d2060886e8c58e726d74c8219