[NaCl SDK] Fix "make debug" and "make run" on Mac.

native_client_sdk/src/tools/tests/getos_test.py

Index: native_client_sdk/src/tools/tests/getos_test.py
diff --git a/native_client_sdk/src/tools/tests/getos_test.py b/native_client_sdk/src/tools/tests/getos_test.py
index 99ffb95079fb013b12bc39f7b9d89ec570e5a806..b687d9190599f4be3461732761a031db29cd4ce5 100755
--- a/native_client_sdk/src/tools/tests/getos_test.py
+++ b/native_client_sdk/src/tools/tests/getos_test.py
@@ -71,21 +71,23 @@ class TestGetos(TestCaseExtended):
     """honors CHROME_PATH environment."""
     with mock.patch.dict('os.environ', {'CHROME_PATH': '/dummy/file'}):
       expect = "Invalid CHROME_PATH.*/dummy/file"
+      platform = getos.GetPlatform()
       if hasattr(self, 'assertRaisesRegexp'):
         with self.assertRaisesRegexp(getos.Error, expect):
-          getos.GetChromePath()
+          getos.GetChromePath(platform)
       else:
         # TODO(sbc): remove this path once we switch to python2.7 everywhere
-        self.assertRaises(getos.Error, getos.GetChromePath)
+        self.assertRaises(getos.Error, getos.GetChromePath, platform)
 
   def testGetChromePathCheckExists(self):
     """checks that existence of explicitly CHROME_PATH is checked."""
     mock_location = '/bin/ls'
-    if getos.GetPlatform() == 'win':
+    platform = getos.GetPlatform()
+    if platform == 'win':
       mock_location = 'c:\\nowhere'
     with mock.patch.dict('os.environ', {'CHROME_PATH': mock_location}):
       with mock.patch('os.path.exists') as mock_exists:
-        chrome = getos.GetChromePath()
+        chrome = getos.GetChromePath(platform)
         self.assertEqual(chrome, mock_location)
         mock_exists.assert_called_with(chrome)