Fix extension id calculation to take into account Windows encoding.

tools/crx_id/crx_id_unittest.py

Index: tools/crx_id/crx_id_unittest.py
diff --git a/tools/crx_id/crx_id_unittest.py b/tools/crx_id/crx_id_unittest.py
index 3d54ebfd24ccd4dd98b85da745287c406144c75b..4d0f80f753420c92d30e3a3c92a93f70c2652ae3 100755
--- a/tools/crx_id/crx_id_unittest.py
+++ b/tools/crx_id/crx_id_unittest.py
@@ -63,13 +63,22 @@ class CrxIdUnittest(unittest.TestCase):
     self.assertEqual(crx_id.GetCRXAppID('/tmp/temp_extension',
                                         from_file_path=True),
                      'ajbbicncdkdlchpjplgjaglppbcbmaji')
+
+  def testFromWindowsPath(self):
+    self.assertEqual(crx_id.GetCRXAppID(r'D:\Documents\chrome\test_extension',
+                                        from_file_path=True,
+                                        is_win_path=True),
+                     'fegemedmbnhglnecjgbdhekaghkccplm')
+
     # Test drive letter normalization.
-    kWinPathId = 'popnagglbbhjlobnnbcjnckakjoegnjp'
-    self.assertEqual(crx_id.GetCRXAppID('c:\temp_extension',
-                                        from_file_path=True),
+    kWinPathId = 'aiinlcdagjihibappcdnnhcccdokjlaf'
+    self.assertEqual(crx_id.GetCRXAppID(r'c:\temp_extension',
+                                        from_file_path=True,
+                                        is_win_path=True),
                      kWinPathId)
-    self.assertEqual(crx_id.GetCRXAppID('C:\temp_extension',
-                                        from_file_path=True),
+    self.assertEqual(crx_id.GetCRXAppID(r'C:\temp_extension',
+                                        from_file_path=True,
+                                        is_win_path=True),
                      kWinPathId)
 
 if __name__ == '__main__':