When building Launcher3 target, LauncherDumpProto class should not be proguarded b/36904684 am: 2d4d1c532d

Change-Id: I50b2c2e0502ca70fe0a42edb2eb2fb7ffefd5d9d
diff --git a/proguard.flags b/proguard.flags
index 2ad9cac..51abcca 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -98,3 +98,7 @@
 -keep interface com.android.launcher3.userevent.nano.LauncherLogProto.** {
   *;
 }
+
+-keep interface com.android.launcher3.model.nano.LauncherDumpProto.** {
+  *;
+}