Run nanobench on perf bots.

slave/skia_slave_scripts/run_nanobench.py

Index: slave/skia_slave_scripts/run_nanobench.py
diff --git a/slave/skia_slave_scripts/run_nanobench.py b/slave/skia_slave_scripts/run_nanobench.py
new file mode 100644
index 0000000000000000000000000000000000000000..6003a98f5c9bad6ea909d3bad7762e87e7fcbbe4
--- /dev/null
+++ b/slave/skia_slave_scripts/run_nanobench.py
@@ -0,0 +1,36 @@
+#!/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
+
+from build_step import BuildStep
+from utils import gclient_utils
+
+class RunNanobench(BuildStep):
+  """A BuildStep that runs nanobench."""
+
+  def __init__(self, timeout=9600, no_output_timeout=9600, **kwargs):
+    super(RunNanobench, self).__init__(timeout=timeout,
+                                       no_output_timeout=no_output_timeout,
+                                       **kwargs)
+
+  def _JSONPath(self):
+    git_timestamp = gclient_utils.GetGitRepoPOSIXTimestamp()
+    return os.path.join(
+            self._device_dirs.PerfDir(),
+            'nanobench_%s_%s.json' % ( self._got_revision, git_timestamp))
+
+  def _Run(self):
+    args = ['-i', self._device_dirs.ResourceDir()]
+    if self._perf_data_dir:
+      args.extend(['--outResultsFile', self._JSONPath()])
+    self._flavor_utils.RunFlavoredCmd('nanobench', args)
+
+
+if '__main__' == __name__:
+  sys.exit(BuildStep.RunBuildStep(RunNanobench))