Hotword Audio Verification app: control the hotword settings

chrome/common/extensions/api/hotword_private.idl

Index: chrome/common/extensions/api/hotword_private.idl
diff --git a/chrome/common/extensions/api/hotword_private.idl b/chrome/common/extensions/api/hotword_private.idl
index e71be830db00a66f12e49c2ec67ee09b03765e6c..24514f919c88443767e5ac07e9ffe3c1bb8b13c2 100644
--- a/chrome/common/extensions/api/hotword_private.idl
+++ b/chrome/common/extensions/api/hotword_private.idl
@@ -67,6 +67,12 @@
     static void setAudioLoggingEnabled(boolean state,
                                        optional GenericDoneCallback callback);
 
+    // Sets the current enabled state of hotword-always-on-search pref.
+    // True: enable hotword always on search.
+    // False: disable hotword always on search.
+    static void setHotwordAlwaysOnSearchEnabled(boolean state,
+        optional GenericDoneCallback callback);
+
     // Sets the current state of the browser-requested hotword session.
     static void setHotwordSessionState(boolean started,
                                        optional GenericDoneCallback callback);