Switch on use_new_wrapper_types mode for url/mojo/ and components/web_cache/

url/mojo/origin_struct_traits.h

Index: url/mojo/origin_struct_traits.h
diff --git a/url/mojo/origin_struct_traits.h b/url/mojo/origin_struct_traits.h
index 1f7d63a479b34f1ad413008fbaebe59110b23a5e..c92cd76504bbf12479e7357ab7f84e85af0c3d43 100644
--- a/url/mojo/origin_struct_traits.h
+++ b/url/mojo/origin_struct_traits.h
@@ -13,12 +13,8 @@ namespace mojo {
 
 template <>
 struct StructTraits<url::mojom::Origin, url::Origin> {
-  static base::StringPiece scheme(const url::Origin& r) {
-    return base::StringPiece(r.scheme());
-  }
-  static base::StringPiece host(const url::Origin& r) {
-    return base::StringPiece(r.host());
-  }
+  static const std::string& scheme(const url::Origin& r) { return r.scheme(); }
+  static const std::string& host(const url::Origin& r) { return r.host(); }
   static uint16_t port(const url::Origin& r) {
     return r.port();
   }