Clean up forward declarations in Source/modules

Source/modules/serviceworkers/Request.h

Index: Source/modules/serviceworkers/Request.h
diff --git a/Source/modules/serviceworkers/Request.h b/Source/modules/serviceworkers/Request.h
index 6b0a79648506ce65783e2a252653f28b59ca780c..3c773e7f6805e31331920a1c3c5bef9d67affb24 100644
--- a/Source/modules/serviceworkers/Request.h
+++ b/Source/modules/serviceworkers/Request.h
@@ -6,21 +6,13 @@
 #define Request_h
 
 #include "bindings/core/v8/Dictionary.h"
-#include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/serviceworkers/Body.h"
 #include "modules/serviceworkers/FetchRequestData.h"
 #include "modules/serviceworkers/Headers.h"
-#include "platform/heap/Handle.h"
-#include "platform/weborigin/KURL.h"
-#include "wtf/RefPtr.h"
-#include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class RequestInit;
-struct ResourceLoaderOptions;
-class ResourceRequest;
-struct ThreadableLoaderOptions;
 class WebServiceWorkerRequest;
 
 class Request final : public Body {