[Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/core/html/FormData.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 83 matching lines @@
     IterationSource* startIteration(ScriptState*, ExceptionState&) override;
 
     WTF::TextEncoding m_encoding;
     // Entry pointers in m_entries never be nullptr.
     HeapVector<Member<const Entry>> m_entries;
 };
 
 // Represents entry, which is a pair of a name and a value.
 // https://xhr.spec.whatwg.org/#concept-formdata-entry
 // Entry objects are immutable.
-class FormData::Entry : public GarbageCollectedFinalized<FormData::Entry> {
+class CORE_EXPORT FormData::Entry : public GarbageCollectedFinalized<FormData::Entry> {
 public:
-    Entry(const CString& name, const CString& value) : m_name(name), m_value(value) { }
-    Entry(const CString& name, Blob* blob, const String& filename) : m_name(name), m_blob(blob), m_filename(filename) { }
+    Entry(const CString&, const CString&);
+    Entry(const CString&, Blob*, const String&);
     DECLARE_TRACE();
 
-    bool isString() const { return !m_blob; }
-    bool isFile() const { return m_blob; }
+    bool isString() const;
+    bool isFile() const;
     const CString& name() const { return m_name; }
     const CString& value() const { return m_value; }
-    Blob* blob() const { return m_blob.get(); }
+    Blob* blob() const;
     File* file() const;
     const String& filename() const { return m_filename; }
 
 private:
     const CString m_name;
     const CString m_value;
     const Member<Blob> m_blob;
     const String m_filename;
 };
 
 } // namespace blink
 
 #endif // FormData_h