Mojo C++ bindings: switch WebKit mojom targets to use STL/WTF types.

third_party/WebKit/public/BUILD.gn

Index: third_party/WebKit/public/BUILD.gn
diff --git a/third_party/WebKit/public/BUILD.gn b/third_party/WebKit/public/BUILD.gn
index f9d2e9bffa2078f269eadb3ea9caad51aed6cb6e..f3a05ca855bde3a8d726dd6c3fa8d8853533a850 100644
--- a/third_party/WebKit/public/BUILD.gn
+++ b/third_party/WebKit/public/BUILD.gn
@@ -641,17 +641,7 @@ grit("image_resources") {
 
 mojom("mojo_bindings") {
   sources = [
-    "platform/mime_registry.mojom",
-    "platform/modules/background_sync/background_sync.mojom",
     "platform/modules/bluetooth/web_bluetooth.mojom",
-    "platform/modules/broadcastchannel/broadcast_channel.mojom",
-    "platform/modules/budget_service/budget_service.mojom",
-    "platform/modules/hyphenation/hyphenation.mojom",
-    "platform/modules/notifications/notification.mojom",
-    "platform/modules/notifications/notification_service.mojom",
-    "platform/modules/screen_orientation/screen_orientation_lock_types.mojom",
-    "platform/modules/sensitive_input_visibility/sensitive_input_visibility_service.mojom",
-    "platform/modules/serviceworker/service_worker_event_status.mojom",
   ]
   public_deps = [
     ":android_mojo_bindings",
@@ -679,11 +669,21 @@ mojom("mojo_bindings") {
 
 mojom("new_wrapper_types_mojo_bindings") {
   sources = [
+    "platform/mime_registry.mojom",
     "platform/modules/app_banner/app_banner.mojom",
+    "platform/modules/background_sync/background_sync.mojom",
+    "platform/modules/broadcastchannel/broadcast_channel.mojom",
+    "platform/modules/budget_service/budget_service.mojom",
+    "platform/modules/hyphenation/hyphenation.mojom",
     "platform/modules/mediasession/media_session.mojom",
+    "platform/modules/notifications/notification.mojom",
+    "platform/modules/notifications/notification_service.mojom",
     "platform/modules/permissions/permission.mojom",
     "platform/modules/permissions/permission_status.mojom",
     "platform/modules/presentation/presentation.mojom",
+    "platform/modules/screen_orientation/screen_orientation_lock_types.mojom",
+    "platform/modules/sensitive_input_visibility/sensitive_input_visibility_service.mojom",
+    "platform/modules/serviceworker/service_worker_event_status.mojom",
     "platform/modules/shapedetection/shapedetection.mojom",
     "platform/modules/websockets/websocket.mojom",
     "platform/referrer.mojom",
@@ -715,8 +715,6 @@ mojom("android_mojo_bindings") {
     "//url/mojo:url_mojom_gurl",
   ]
 
-  use_new_wrapper_types = false
-
   # See comment above.
   export_class_attribute = "CONTENT_EXPORT"
   export_define = "CONTENT_IMPLEMENTATION=1"