Stop running webgl2_conformance on the Win x64 Debug FYI bot.

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 740 matching lines @@
       '--use-gl=angle',
     ],
   },
   'webgl2_conformance_tests': {
     'tester_configs': [
       {
         'fyi_only': True,
         'run_on_optional': True,
       },
     ],
+    'disabled_tester_configs': [
+      {
+        'names': [
+          # http://crbug.com/599451: this test is currently too slow
+          # to run on x64 in Debug mode. Need to shard the tests.
+          'Win7 x64 Debug (NVIDIA)',
+        ],
+      },
+    ],
     'target_name': 'webgl_conformance',
     'args': [
       '--webgl-conformance-version=2.0.0',
       '--webgl2-only=true',
     ],
   },
 }
 
 def substitute_args(tester_config, args):
   """Substitutes the ${os_type} variable in |args| from the
@@ skipping 184 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())