DO NOT MERGE: Revert "Update package names to work with the proto3 compiler"

This reverts commit e2ff6b31335ae0a1c4c82a25acc410b59aaaa764.

Change-Id: I3aaf0b7331697fb318afbc1e99e904ea0441e3b8
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index 6b27559..448cf64 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -15,7 +15,7 @@
  */
 syntax = "proto2";
 
-option java_package = "com.android.launcher3.userevent";
+option java_package = "com.android.launcher3.userevent.nano";
 option java_outer_classname = "LauncherLogProto";
 
 package userevent;