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-rw-r--r--core/java/android/service/trust/TrustAgentService.java2
1 files changed, 2 insertions, 0 deletions
diff --git a/core/java/android/service/trust/TrustAgentService.java b/core/java/android/service/trust/TrustAgentService.java
index 98f70f4023d9..a6cddae80688 100644
--- a/core/java/android/service/trust/TrustAgentService.java
+++ b/core/java/android/service/trust/TrustAgentService.java
@@ -33,6 +33,8 @@ import android.util.Slog;
* A service that notifies the system about whether it believes the environment of the device
* to be trusted.
*
+ * <p>Trust agents may only be provided by the platform.</p>
+ *
* <p>To extend this class, you must declare the service in your manifest file with
* the {@link android.Manifest.permission#BIND_TRUST_AGENT} permission
* and include an intent filter with the {@link #SERVICE_INTERFACE} action. For example:</p>