Start tracking user-visible permissions on each platform version.
Change-Id: If5f6d0e88b2304348f17ef9687fb97ff1abf04f8
diff --git a/perm/readme.txt b/perm/readme.txt
new file mode 100644
index 0000000..eedb79d
--- /dev/null
+++ b/perm/readme.txt
@@ -0,0 +1,9 @@
+This directory contains all user-visible permissions declared
+by the core platform and built-in applications for each platform
+version.
+
+The file can be generated by running the following command
+on a freshly wiped device (that does not have any third party apps
+installed):
+
+adb shell pm list permissions -u -g | sort | grep "permission:" | tr -d "\\r" > prebuilts/sdk/perm/NN.txt