WIP: Introduce CompressibleString

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

Index: third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.h b/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.h
index e7ae62ddf9882adf06e1dcd63fae61d02e942954..b7e0798ee74e48547262e11f366c68214d2e0e6c 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.h
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptSourceCode.h
@@ -53,18 +53,19 @@ public:
     // Not sure if that matters.
     explicit ScriptSourceCode(ScriptResource*);
     ScriptSourceCode(const String&, const KURL& = KURL(), const TextPosition& startPosition = TextPosition::minimumPosition());
+    ScriptSourceCode(PassRefPtrWillBeRawPtr<CompressableString>, 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(); }
+    bool isNull() const { return !m_source; }
 
-    const String& source() const { return m_source; }
+    RefPtrWillBeRawPtr<CompressableString> 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(); }
@@ -76,7 +77,7 @@ public:
 private:
     void treatNullSourceAsEmpty();
 
-    String m_source;
+    RefPtrWillBeMember<CompressableString> m_source;

[haraken, 2015/10/22 16:03:31]

I don't think it makes sense to put CompressableString on Oilpan's heap. Let's
keep it in non-oilpan (i.e., Remove all WillBe types from CompressableString).

[hajimehoshi, 2015/10/26 09:34:02]

Done.

     ResourcePtr<ScriptResource> m_resource;
     RefPtrWillBeMember<ScriptStreamer> m_streamer;
     mutable KURL m_url;