Send puller registration signal to statsd

Bug: 153384066
Test: m -j
Change-Id: Idd2465d52e6720d7bce26ecc7998721b9d9790e3
diff --git a/cmds/statsd/src/StatsService.h b/cmds/statsd/src/StatsService.h
index 114c84f..ca01eeb 100644
--- a/cmds/statsd/src/StatsService.h
+++ b/cmds/statsd/src/StatsService.h
@@ -165,6 +165,11 @@
     virtual Status sendAppBreadcrumbAtom(int32_t label, int32_t state) override;
 
     /**
+     * Binder call to notify statsd that all pullers from boot have been registered.
+     */
+    virtual Status allPullersFromBootRegistered();
+
+    /**
      * Binder call to register a callback function for a pulled atom.
      */
     virtual Status registerPullAtomCallback(