Implement kiosk multiple apps feature.

chromeos/chromeos_paths.h

Index: chromeos/chromeos_paths.h
diff --git a/chromeos/chromeos_paths.h b/chromeos/chromeos_paths.h
index 2e500d9a1277e6d53e9a644b58e98bb59b1943d4..95fdcfa05643e7c92567489e1c764087c111d96e 100644
--- a/chromeos/chromeos_paths.h
+++ b/chromeos/chromeos_paths.h
@@ -46,6 +46,8 @@ enum {
                                               // policy for extensions.
   DIR_DEVICE_COLOR_CALIBRATION_PROFILES, // Directory where system color
                                          // calibration files can be found.
+  DIR_DEVICE_EXTENSION_LOCAL_CACHE,  // Directory where extension local cache
+                                     // is stored.
   PATH_END
 };