Onboard content protection flags

Bug: 301658008
Test: Manual with a test flag
Change-Id: I0d58859f3a7f6b48045a868b728c79610e19225b

AconfigFlags.bp

@@ -39,6 +39,7 @@ aconfig_srcjars = [
     ":android.multiuser.flags-aconfig-java{.generated_srcjars}",
     ":android.app.flags-aconfig-java{.generated_srcjars}",
     ":android.credentials.flags-aconfig-java{.generated_srcjars}",
+    ":android.view.contentprotection.flags-aconfig-java{.generated_srcjars}",
 ]
 
 filegroup {
@@ -369,3 +370,16 @@ java_aconfig_library {
     aconfig_declarations: "android.credentials.flags-aconfig",
     defaults: ["framework-minus-apex-aconfig-java-defaults"],
 }
+
+// Content Protection
+aconfig_declarations {
+    name: "android.view.contentprotection.flags-aconfig",
+    package: "android.view.contentprotection.flags",
+    srcs: ["core/java/android/view/contentprotection/flags/*.aconfig"],
+}
+
+java_aconfig_library {
+    name: "android.view.contentprotection.flags-aconfig-java",
+    aconfig_declarations: "android.view.contentprotection.flags-aconfig",
+    defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}

core/java/android/view/contentprotection/flags/content_protection_flags.aconfig

+package: "android.view.contentprotection.flags"
+
+flag {
+    name: "blocklist_update_enabled"
+    namespace: "content_protection"
+    description: "If true, content protection blocklist is mutable and can be updated."
+    bug: "301658008"
+}