Disable ReadWriteAlpha on TSAN

tools/dm_flags.py

 #
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 
 #!/usr/bin/env python
 
 usage = '''
@@ skipping 216 matching lines @@
     match.append('~scaled_tilemodes_npot')
     match.append('~bleed_image')  # skia:4367
     match.append('~ReadPixels')  # skia:4368
 
   if 'ANGLE' in bot and 'Debug' in bot:
     match.append('~GLPrograms') # skia:4717
 
   if 'MSAN' in bot:
     match.extend(['~Once', '~Shared'])  # Not sure what's up with these tests.
 
+  if 'TSAN' in bot:
+    match.extend(['~ReadWriteAlpha'])   # Flaky on TSAN-covered on nvidia bots. 
+
   if blacklist:
     args.append('--blacklist')
     args.extend(blacklist)
 
   if match:
     args.append('--match')
     args.extend(match)
 
   # These bots run out of memory running RAW codec tests. Do not run them in
   # parallel
@@ skipping 49 matching lines @@
   if len(sys.argv) == 2 and sys.argv[1] == 'test':
     self_test()
     sys.exit(0)
 
   if len(sys.argv) != 3:
     print usage
     sys.exit(1)
 
   with open(sys.argv[1], 'w') as out:
     json.dump(get_args(sys.argv[2]), out)