Skip absurdly slow PDF tests on Valgrind bot.

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 40 matching lines @@
   blacklist.extend('gpu _ PANO_20121023_214540.jpg'.split(' '))
   blacklist.extend('msaa _ PANO_20121023_214540.jpg'.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(' '))
 
-  # PDF + .webp -> jumps depending on uninitialized memory.  skia:3505
   if 'Valgrind' in bot:
+    # PDF + .webp -> jumps depending on uninitialized memory.  skia:3505
     blacklist.extend('pdf _ .webp'.split(' '))
+    # These both take 18+ hours to run.
+    blacklist.extend('pdf gm fontmgr_iter'.split(' '))
+    blacklist.extend('pdf _ PANO_20121023_214540.jpg'.split(' '))
     if 'Valgrind_GPU' in bot:
       args.append('--nocpu')
     elif 'Valgrind_CPU' in bot:
       args.append('--nogpu')
 
   if blacklist:
     args.append('--blacklist')
     args.extend(blacklist)
 
   match = []
@@ skipping 65 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)