Mark AppCacheStorage::DelegateReference exported

content/browser/appcache/appcache_storage.h

Index: content/browser/appcache/appcache_storage.h
diff --git a/content/browser/appcache/appcache_storage.h b/content/browser/appcache/appcache_storage.h
index f557bbd72c164efb7730734a247640668ef8b003..edc059b9381f894ac202dd44ddff063cd328d6ca 100644
--- a/content/browser/appcache/appcache_storage.h
+++ b/content/browser/appcache/appcache_storage.h
@@ -214,7 +214,8 @@ class CONTENT_EXPORT AppCacheStorage {
 
   // Helper used to manage multiple references to a 'delegate' and to
   // allow all pending callbacks to that delegate to be easily cancelled.
-  struct DelegateReference : public base::RefCounted<DelegateReference> {
+  struct CONTENT_EXPORT DelegateReference :
+      public base::RefCounted<DelegateReference> {
     Delegate* delegate;
     AppCacheStorage* storage;