Make blink_trybot recipe work on windows

scripts/slave/recipe_api.py

 # Copyright 2013 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.
 
 import imp
 import inspect
 import os
 import sys
 
 
 class Placeholder(object):
   """Base class for json placeholders. Do not use directly."""
   def render(self, test_data):  # pragma: no cover
     """Return [cmd items]*"""
     raise NotImplementedError
 
   def step_finished(self, stream, step_result, test_data):  # pragma: no cover
     """Called after step completion. Intended to modify step_result."""
     pass
 
 
+class InputDataPlaceholder(Placeholder):
+  def __init__(self, data, suffix):
+    assert isinstance(data, basestring)
+    self.data = data
+    self.suffix = suffix
+    self.input_file = None
+    super(InputDataPlaceholder, self).__init__()
+
+  def render(self, test_data):
+    if test_data is not None:
+      # cheat and pretend like we're going to pass the data on the
+      # cmdline for test expectation purposes.
+      return [self.data]
+    else:  # pragma: no cover
+      input_fd, self.input_file = tempfile.mkstemp(suffix=self.suffix)
+      os.write(input_fd, self.data)
+      os.close(input_fd)
+      return [self.input_file]
+
+  def step_finished(self, stream, step_result, test_data):
+    if test_data is None:  # pragma: no cover
+      os.unlink(self.input_file)
+
+
 class ModuleInjectionSite(object):
   pass
 
 
 class RecipeApi(object):
   """
   Framework class for handling recipe_modules.
 
   Inherit from this in your recipe_modules/<name>/api.py . This class provides
   wiring for your config context (in self.c and methods, and for dependency
@@ skipping 195 matching lines @@
         to_remove.append(dep)
         did_something = True
       map(deps.remove, to_remove)
       if not deps:
         to_pop.append(api_name)
         did_something = True
     map(dep_map.pop, to_pop)
     assert did_something, 'Did nothing on this loop. %s' % dep_map
 
   return inst_map[None]