Avoid to include IDL-generated headers from EventTarget.h and Node.h

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef USB_h
 #define USB_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventTarget.h"
 #include "device/usb/public/interfaces/chooser_service.mojom-blink.h"
 #include "device/usb/public/interfaces/device_manager.mojom-blink.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class LocalFrame;
+class ScriptPromiseResolver;
 class ScriptState;
 class USBDevice;
 class USBDeviceRequestOptions;
 
 class USB final : public EventTargetWithInlineData,
                   public ContextLifecycleObserver,
                   public device::usb::blink::DeviceManagerClient {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(USB);
   USING_PRE_FINALIZER(USB, dispose);
@@ skipping 45 matching lines @@
   HeapHashSet<Member<ScriptPromiseResolver>> m_deviceManagerRequests;
   device::usb::blink::ChooserServicePtr m_chooserService;
   HeapHashSet<Member<ScriptPromiseResolver>> m_chooserServiceRequests;
   mojo::Binding<device::usb::blink::DeviceManagerClient> m_clientBinding;
   HeapHashMap<String, WeakMember<USBDevice>> m_deviceCache;
 };
 
 }  // namespace blink
 
 #endif  // USB_h