WIP: Introduce CompressibleString

third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.h

 /*
  * Copyright (C) 2008, 2009 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 35 matching lines @@
 class ScriptResource;
 
 class CORE_EXPORT ScriptSourceCode final {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
 public:
     ScriptSourceCode();
     // We lose the encoding information from ScriptResource.
     // Not sure if that matters.
     explicit ScriptSourceCode(ScriptResource*);
     ScriptSourceCode(const String&, const KURL& = KURL(), const TextPosition& startPosition = TextPosition::minimumPosition());
+    ScriptSourceCode(const CompressibleString&, const KURL& = KURL(), const TextPosition& startPosition = TextPosition::minimumPosition());
     ScriptSourceCode(PassRefPtrWillBeRawPtr<ScriptStreamer>, ScriptResource*);
 
     ~ScriptSourceCode();
     DECLARE_TRACE();
 
-    bool isEmpty() const { return m_source.isEmpty(); }
+    bool isEmpty() const { return isNull() || m_source.isEmpty(); }
 
     // The null value represents a missing script, created by the nullary
     // constructor, and differs from the empty script.
     bool isNull() const { return m_source.isNull(); }
 
-    const String& source() const { return m_source; }
+    const CompressibleString& source() const { return m_source; }
     ScriptResource* resource() const { return m_resource.get(); }
     const KURL& url() const;
     int startLine() const { return m_startPosition.m_line.oneBasedInt(); }
     const TextPosition& startPosition() const { return m_startPosition; }
     String sourceMapUrl() const;
 
     ScriptStreamer* streamer() const { return m_streamer.get(); }
 
 private:
     void treatNullSourceAsEmpty();
 
-    String m_source;
+    CompressibleString m_source;
     ResourcePtr<ScriptResource> m_resource;
     RefPtrWillBeMember<ScriptStreamer> m_streamer;
     mutable KURL m_url;
     TextPosition m_startPosition;
 };
 
 } // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::ScriptSourceCode);
 
 #endif // ScriptSourceCode_h