--reset-app-list-install-state resets before trying to enable app list.

chrome/browser/ui/app_list/app_list_service_impl.cc

Index: chrome/browser/ui/app_list/app_list_service_impl.cc
diff --git a/chrome/browser/ui/app_list/app_list_service_impl.cc b/chrome/browser/ui/app_list/app_list_service_impl.cc
index 97acf8a512f13d33c44b7691481ef8f42319b26a..043da34896f22c3d8a14cce14981d3f0535f6bdb 100644
--- a/chrome/browser/ui/app_list/app_list_service_impl.cc
+++ b/chrome/browser/ui/app_list/app_list_service_impl.cc
@@ -273,11 +273,11 @@ void AppListServiceImpl::InvalidatePendingProfileLoads() {
 }
 
 void AppListServiceImpl::HandleCommandLineFlags(Profile* initial_profile) {
-  if (command_line_.HasSwitch(switches::kEnableAppList))
-    EnableAppList(initial_profile);
-
   if (command_line_.HasSwitch(switches::kResetAppListInstallState))
     local_state_->SetBoolean(prefs::kAppLauncherHasBeenEnabled, false);
+
+  if (command_line_.HasSwitch(switches::kEnableAppList))
+    EnableAppList(initial_profile);
 }
 
 void AppListServiceImpl::SendUsageStats() {