Suppress WebglExtension_EXT_disjoint_timer_query on Linux Intel.

linux_optional_gpu_tests_tel doesn't run the WebGL 1.0 conformance
tests on Linux/Intel on the CQ (it should) so this was missed.

Bug: 820891, 867675
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_optional_gpu_tests_rel
Change-Id: I77b898b4ddd83cc1e1ec8fcdcc19918c203433d7
Tbr: kainino@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/1155807Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579233}

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

@@ -57,6 +57,8 @@ class WebGLConformanceExpectations(GpuTestExpectations):
         ['win', 'mac', 'linux', 'android'])
     self.Skip('WebglExtension_EXT_disjoint_timer_query',
         ['android'], bug=808744)
+    self.Fail('WebglExtension_EXT_disjoint_timer_query',
+        ['linux', 'intel'], bug=867675)
 
     # Extensions not available under D3D9
     self.Fail('WebglExtension_EXT_sRGB',