Mojo C++ bindings: make the generator use STL/WTF string/vector/map by default.

media/mojo/interfaces/BUILD.gn

Index: media/mojo/interfaces/BUILD.gn
diff --git a/media/mojo/interfaces/BUILD.gn b/media/mojo/interfaces/BUILD.gn
index 0363d5c8500ce1460b7d4d7f510ec5d45434a62c..9c86d09348ab655ee73ae423aa8e557e148215d1 100644
--- a/media/mojo/interfaces/BUILD.gn
+++ b/media/mojo/interfaces/BUILD.gn
@@ -31,10 +31,14 @@ mojom("interfaces") {
     "//ui/gfx/geometry/mojo",
     "//url/mojo:url_mojom_gurl",
   ]
+
+  use_new_wrapper_types = false
 }
 
 mojom("image_capture") {
   sources = [
     "image_capture.mojom",
   ]
+
+  use_new_wrapper_types = false
 }