arc: Add support of default and OEM apps.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
index dbffd9e264e27b7ef31d8dbb27b5fd291d0ca682..6afbfbd9150905a23af43272f6e76a4356a7cb0c 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
@@ -14,6 +14,7 @@
 #include "ash/display/window_tree_host_manager.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/app_icon_loader.h"
 #include "chrome/browser/ui/app_list/app_list_syncable_service.h"
@@ -357,6 +358,8 @@ class ChromeLauncherControllerImpl
   typedef std::map<std::string, RunningAppListIds> RunningAppListIdMap;
   RunningAppListIdMap last_used_running_application_order_;
 
+  base::WeakPtrFactory<ChromeLauncherControllerImpl> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherControllerImpl);
 };