On Pixel C, suppress WebGL test failures and stop running gl_tests for now.

content/test/gpu/generate_buildbot_json.py

 #!/usr/bin/env python
 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Script to generate chromium.gpu.json and chromium.gpu.fyi.json in
 the src/testing/buildbot directory. Maintaining these files by hand is
 too unwieldy.
 """
 
@@ skipping 653 matching lines @@
   # bots. crbug.com/582094 . It's not useful now anyway until audio
   # hardware is deployed on the swarming bots, so stop running it
   # everywhere.
   # 'content_unittests': {},
   'gl_tests': {
     'tester_configs': [
       {
         'allow_on_android': True,
       }
     ],
+    'disabled_tester_configs': [
+      {
+        'names': [
+          # TODO(kbr): investigate inability to recognize this
+          # configuration in the various tests. crbug.com/624621
+          'Android Release (Pixel C)',
+        ],
+      },
+    ],
     'desktop_args': ['--use-gpu-in-tests']
   },
   'gl_unittests': {
     'tester_configs': [
       {
         'allow_on_android': True,
       }
     ],
     'desktop_args': ['--use-gpu-in-tests']
   },
@@ skipping 534 matching lines @@
     json.dump(tests, fp, indent=2, separators=(',', ': '), sort_keys=True)
     fp.write('\n')
 
 def main():
   generate_all_tests(FYI_WATERFALL, True)
   generate_all_tests(WATERFALL, False)
   return 0
 
 if __name__ == "__main__":
   sys.exit(main())