Make app launcher Chrome Store UMA consistent with NTP.

chrome/browser/ui/app_list/extension_app_item.cc

 // Copyright (c) 2012 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/extension_app_item.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_sorting.h"
@@ skipping 240 matching lines @@
 
 void ExtensionAppItem::Activate(int event_flags) {
   // |extension| could be NULL when it is being unloaded for updating.
   const Extension* extension = GetExtension();
   if (!extension)
     return;
 
   if (RunExtensionEnableFlow())
     return;
 
-  AppLauncherHandler::RecordAppLaunchType(
-      extension_misc::APP_LAUNCH_APP_LIST_MAIN,
-      extension->GetType());
+  AppLauncherHandler::RecordAppListMainLaunch(extension);
   controller_->ActivateApp(profile_, extension, event_flags);
 }
 
 ui::MenuModel* ExtensionAppItem::GetContextMenuModel() {
   if (!context_menu_) {
     context_menu_.reset(new app_list::AppContextMenu(
         this, profile_, extension_id_, controller_, is_platform_app_));
   }
 
   return context_menu_->GetMenuModel();
 }
 
 void ExtensionAppItem::ExecuteLaunchCommand(int event_flags) {
   Launch(event_flags);
 }