1 files changed, 4 insertions, 1 deletions
diff --git a/chrome/browser/extensions/extension_assets_manager_chromeos.h b/chrome/browser/extensions/extension_assets_manager_chromeos.h
index bfb37ad..670a144 100644
--- a/chrome/browser/extensions/extension_assets_manager_chromeos.h
+++ b/chrome/browser/extensions/extension_assets_manager_chromeos.h
@@ -9,7 +9,10 @@
 
 #include "chrome/browser/extensions/extension_assets_manager.h"
 
+namespace base {
 template <typename T> struct DefaultSingletonTraits;
+}
+
 class PrefRegistrySimple;
 
 namespace base {
@@ -64,7 +67,7 @@ class ExtensionAssetsManagerChromeOS : public ExtensionAssetsManager {
   static void SetSharedInstallDirForTesting(const base::FilePath& install_dir);
 
  private:
-  friend struct DefaultSingletonTraits<ExtensionAssetsManagerChromeOS>;
+  friend struct base::DefaultSingletonTraits<ExtensionAssetsManagerChromeOS>;
 
   ExtensionAssetsManagerChromeOS();
   ~ExtensionAssetsManagerChromeOS() override;