Blacklist certain win7 gms that are never finishing on dm

tools/dm_flags.py

 #!/usr/bin/env python
 
 usage = '''
 Write extra flags to outfile for DM based on the bot name:
   $ python dm_flags.py outfile Test-Mac10.9-MacMini6.2-HD4000-x86_64-Release
 Or run self-tests:
   $ python dm_flags.py test
 '''
 
 import inspect
@@ skipping 38 matching lines @@
   blacklist = []
   # This image is too large to be a texture for many GPUs.
   blacklist.extend('gpu _ PANO_20121023_214540.jpg'.split(' '))
   blacklist.extend('msaa _ PANO_20121023_214540.jpg'.split(' '))
 
   # Leon doesn't care about this, so why run it?
   if 'Win' in bot:
     blacklist.extend('_ image _'.split(' '))
     blacklist.extend('_ subset _'.split(' '))
 
+  # Certain gm's on win7 gpu and pdf are never finishing and keeping the test
+  # running forever
+  if 'Win7' in bot:
+    blacklist.extend('msaa16 gm colorwheelnative'.split(' '))
+    blacklist.extend('pdf gm fontmgr_iter_factory'.split(' '))
+
   # Drawing SKPs or images into GPU canvases is a New Thing.
   # It seems like we're running out of RAM on some Android bots, so start off
   # with a very wide blacklist disabling all these tests on all Android bots.
   if 'Android' in bot:  # skia:3255
     blacklist.extend('gpu skp _ gpu image _ gpu subset _'.split(' '))
     blacklist.extend('msaa skp _ msaa image _ gpu subset _'.split(' '))
 
   if 'Valgrind' in bot:
     # PDF + .webp -> jumps depending on uninitialized memory.  skia:3505
     blacklist.extend('pdf _ .webp'.split(' '))
@@ skipping 82 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)