Mojo C++ binding: make device/usb mojom targets use STD string/vector types

third_party/WebKit/Source/modules/webusb/USBInTransferResult.h

Index: third_party/WebKit/Source/modules/webusb/USBInTransferResult.h
diff --git a/third_party/WebKit/Source/modules/webusb/USBInTransferResult.h b/third_party/WebKit/Source/modules/webusb/USBInTransferResult.h
index 9645745bc71ccf4655ae5662e924c767a8af9eb8..255de5e9b15c3017de1e80fb0dd7b94bc4df4c4b 100644
--- a/third_party/WebKit/Source/modules/webusb/USBInTransferResult.h
+++ b/third_party/WebKit/Source/modules/webusb/USBInTransferResult.h
@@ -19,14 +19,14 @@ class USBInTransferResult final
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static USBInTransferResult* create(const String& status, const Vector<uint8_t>& data)
+    static USBInTransferResult* create(const String& status, const Optional<Vector<uint8_t>>& data)
     {
         return new USBInTransferResult(status, data);
     }
 
-    USBInTransferResult(const String& status, const Vector<uint8_t>& data)
+    USBInTransferResult(const String& status, const Optional<Vector<uint8_t>>& data)
         : m_status(status)
-        , m_data(DOMDataView::create(DOMArrayBuffer::create(data.data(), data.size()), 0, data.size()))
+        , m_data(data ? DOMDataView::create(DOMArrayBuffer::create(data->data(), data->size()), 0, data->size()) : nullptr)
     {
     }