try nanobench on Windows again

slave/skia_slave_scripts/run_nanobench.py

 #!/usr/bin/env python
 # Copyright (c) 2014 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.
 
 """Run the Skia benchmarking executable."""
 
 import os
 import sys
 
@@ skipping 26 matching lines @@
       args.extend(['--outResultsFile', self._JSONPath()])
 
     run_nanobench = True
     match  = []
 
     # Disable known problems.
     if self._AnyMatch('Win7', 'Android'):
       # Segfaults when run as GPU bench.  Very large texture?
       match.append('~blurroundrect')
 
-    if self._AllMatch('Win', 'Release'):
-      # Appears we're falling into an infinite loop.
-      run_nanobench = False
-
     if self._AnyMatch('Nexus7'):
       # Crashes in GPU mode.
       match.append('~draw_stroke')
 
     if match:
       args.append('--match')
       args.extend(match)
 
     if run_nanobench:
       self._flavor_utils.RunFlavoredCmd('nanobench', args)
 
 
 if '__main__' == __name__:
   sys.exit(BuildStep.RunBuildStep(RunNanobench))