936c040ec4
UNRATED is equivalent to Java null in its meaning and usage, thus it is not appropriate to use non-trivial strings such as "com.android.tv" and "UNRATED" to create this constant. Replaced them with the string "null", which is commonly used in other parts of Android and also modified the documentation to clarify its usage. Bug: 19102311 Change-Id: I28ac8da3584eb2cc6dfd7284e2b88873fd4e9d13