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

skia/public/interfaces/BUILD.gn

Index: skia/public/interfaces/BUILD.gn
diff --git a/skia/public/interfaces/BUILD.gn b/skia/public/interfaces/BUILD.gn
index 3ad2ab6d8a2ac4a456f2fd0990f6873117ee6c17..ca396fa59f3fd715d59509a98e7676adaa3ace88 100644
--- a/skia/public/interfaces/BUILD.gn
+++ b/skia/public/interfaces/BUILD.gn
@@ -9,6 +9,8 @@ mojom("interfaces") {
     "bitmap.mojom",
     "image_filter.mojom",
   ]
+
+  use_new_wrapper_types = false
 }
 
 mojom("mojo") {
@@ -18,6 +20,8 @@ mojom("mojo") {
   public_deps = [
     ":interfaces",
   ]
+
+  use_new_wrapper_types = false
 }
 
 mojom("test_interfaces") {
@@ -30,4 +34,6 @@ mojom("test_interfaces") {
     ":interfaces",
     ":mojo",
   ]
+
+  use_new_wrapper_types = false
 }