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

chrome/browser/ui/app_list/app_list_service_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/app_list/app_list_service_impl.h"
 
 #include <string>
 
 #include "apps/pref_names.h"
 #include "base/command_line.h"
@@ skipping 255 matching lines @@
       AppShortcutManagerFactory::GetForProfile(initial_profile);
   if (shortcut_manager)
     shortcut_manager->OnceOffCreateShortcuts();
 }
 
 void AppListServiceImpl::InvalidatePendingProfileLoads() {
   profile_loader_->InvalidatePendingProfileLoads();
 }
 
 void AppListServiceImpl::HandleCommandLineFlags(Profile* initial_profile) {
+  if (command_line_.HasSwitch(switches::kResetAppListInstallState))
+    local_state_->SetBoolean(prefs::kAppLauncherHasBeenEnabled, false);
+
   if (command_line_.HasSwitch(switches::kEnableAppList))
     EnableAppList(initial_profile);
-
-  if (command_line_.HasSwitch(switches::kResetAppListInstallState))
-    local_state_->SetBoolean(prefs::kAppLauncherHasBeenEnabled, false);
 }
 
 void AppListServiceImpl::SendUsageStats() {
   // Send app list usage stats after a delay.
   const int kSendUsageStatsDelay = 5;
   base::MessageLoop::current()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&AppListServiceImpl::SendAppListStats),
       base::TimeDelta::FromSeconds(kSendUsageStatsDelay));
 }