Add SharedFilter to tuner service.

Bug: 196124225
Test: atest android.media.tv.tuner.cts on both AIDL and HIDL HAL.
Change-Id: I91b1f9ef09b0bda868b7817be4d946d11629b16c
diff --git a/services/tuner/TunerHelper.h b/services/tuner/TunerHelper.h
index 0d8d6a5..c1252b9 100644
--- a/services/tuner/TunerHelper.h
+++ b/services/tuner/TunerHelper.h
@@ -36,6 +36,11 @@
 const static int TUNER_HAL_VERSION_1_1 = (1 << 16) | 1;
 const static int TUNER_HAL_VERSION_2_0 = 2 << 16;
 
+// Keep syncing with ShareFilter.java
+const static int STATUS_INACCESSIBLE = 1 << 7;
+
+const static String16 sSharedFilterPermission("android.permission.ACCESS_TV_SHARED_FILTER");
+
 typedef enum {
     FRONTEND,
     LNB,