Prepare to run setup_unittests on win bots.

scripts/master/factory/chromium_commands.py

Index: scripts/master/factory/chromium_commands.py
diff --git a/scripts/master/factory/chromium_commands.py b/scripts/master/factory/chromium_commands.py
index 8923189e1abe73729d3a3adc9990bd9f3c80d272..9966565332fb2e707359f7f4e06c8e6168001207 100644
--- a/scripts/master/factory/chromium_commands.py
+++ b/scripts/master/factory/chromium_commands.py
@@ -461,13 +461,13 @@ class ChromiumCommands(commands.FactoryCommands):
 
   def AddInstallerTests(self, factory_properties):
     if self._target_platform == 'win32':
-      self.AddGTestTestStep('installer_util_unittests',
-                            factory_properties)
+      self.AddGTestTestStep('installer_util_unittests', factory_properties)
+      self.AddGTestTestStep('setup_unittests', factory_properties)
 
   def AddBuildrunnerInstallerTests(self, factory_properties):
     if self._target_platform == 'win32':
-      self.AddGTestTestStep('installer_util_unittests',
-                            factory_properties)
+      self.AddGTestTestStep('installer_util_unittests', factory_properties)
+      self.AddGTestTestStep('setup_unittests', factory_properties)
 
   def AddChromeUnitTests(self, factory_properties):
     self.AddGTestTestStep('ipc_tests', factory_properties)