Add COLUMN_SYSTEM_APPROVED in channels table

Also, prevent illegal access to the system columns

Test: cts-tradefed run cts -m CtsTvTestCases
Bug: 34679597
Change-Id: Icf76dbb9ee204d94183e899ed947e3ba4e48a2f5
1 file changed
tree: e2ea382f7652b7d2fdf7f4a8dcc4f97ff62b0fd4
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml