Implement an infrastructure of Blink-in-JS

Source/bindings/v8/V8PerIsolateData.h

Index: Source/bindings/v8/V8PerIsolateData.h
diff --git a/Source/bindings/v8/V8PerIsolateData.h b/Source/bindings/v8/V8PerIsolateData.h
index ead107cfd1fadf46521c51fd45fee0953aeae0f4..b7ec7e7ed2e1e815ec6b6e0a4b7cd68b84bc6345 100644
--- a/Source/bindings/v8/V8PerIsolateData.h
+++ b/Source/bindings/v8/V8PerIsolateData.h
@@ -29,6 +29,7 @@
 #include "bindings/v8/ScopedPersistent.h"
 #include "bindings/v8/ScriptState.h"
 #include "bindings/v8/V8HiddenValue.h"
+#include "bindings/v8/V8PersistentValueMap.h"
 #include "bindings/v8/WrapperTypeInfo.h"
 #include "gin/public/gin_embedders.h"
 #include "gin/public/isolate_holder.h"
@@ -37,6 +38,7 @@
 #include "wtf/HashMap.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/Vector.h"
+#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
@@ -97,6 +99,9 @@ public:
     const char* previousSamplingState() const { return m_previousSamplingState; }
     void setPreviousSamplingState(const char* name) { m_previousSamplingState = name; }
 
+    v8::Handle<v8::Value> compiledPrivateScript(String);
+    void setCompiledPrivateScript(String, v8::Handle<v8::Value>);
+
 private:
     explicit V8PerIsolateData(v8::Isolate*);
     ~V8PerIsolateData();
@@ -117,6 +122,7 @@ private:
     RefPtr<ScriptState> m_scriptRegexpScriptState;
 
     const char* m_previousSamplingState;
+    V8PersistentValueMap<String, v8::Value, false> m_compiledPrivateScript;
 
     bool m_constructorMode;
     friend class ConstructorMode;