Fix nits in content/browser/appcache/

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 871110c17eb64d153fa30b8f5bd0aa79279e7f1a..f557bbd72c164efb7730734a247640668ef8b003 100644
--- a/content/browser/appcache/appcache_storage.h
+++ b/content/browser/appcache/appcache_storage.h
@@ -22,19 +22,15 @@ class GURL;
 namespace content {
 FORWARD_DECLARE_TEST(AppCacheStorageTest, DelegateReferences);
 FORWARD_DECLARE_TEST(AppCacheStorageTest, UsageMap);
-class AppCacheQuotaClientTest;
-class AppCacheResponseTest;
-class AppCacheStorageTest;
-}
-
-namespace content {
-
 class AppCache;
 class AppCacheEntry;
 class AppCacheGroup;
+class AppCacheQuotaClientTest;
 class AppCacheResponseReader;
+class AppCacheResponseTest;
 class AppCacheResponseWriter;
 class AppCacheServiceImpl;
+class AppCacheStorageTest;
 struct AppCacheInfoCollection;
 struct HttpResponseInfoIOBuffer;