Revert of Limit the usage of SharedPersistent to ScriptValue only

Source/bindings/v8/custom/V8HTMLPlugInElementCustom.cpp

Index: Source/bindings/v8/custom/V8HTMLPlugInElementCustom.cpp
diff --git a/Source/bindings/v8/custom/V8HTMLPlugInElementCustom.cpp b/Source/bindings/v8/custom/V8HTMLPlugInElementCustom.cpp
index 123f9eb0fb322e80be36da420dbf52b4c9915b8c..d29360ac3cb693b049ecb6495d480feb8db88d17 100644
--- a/Source/bindings/v8/custom/V8HTMLPlugInElementCustom.cpp
+++ b/Source/bindings/v8/custom/V8HTMLPlugInElementCustom.cpp
@@ -33,7 +33,7 @@
 #include "V8HTMLAppletElement.h"
 #include "V8HTMLEmbedElement.h"
 #include "V8HTMLObjectElement.h"
-#include "bindings/v8/ScriptValue.h"
+#include "bindings/v8/SharedPersistent.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8NPObject.h"
 #include "core/frame/UseCounter.h"
@@ -47,7 +47,11 @@
 static void npObjectNamedGetter(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* imp = C::toNative(info.Holder());
-    v8::Handle<v8::Object> instanceTemplate = v8::Handle<v8::Object>::Cast(imp->pluginWrapper().v8Value());
+    RefPtr<SharedPersistent<v8::Object> > wrapper = imp->pluginWrapper();
+    if (!wrapper)
+        return;
+
+    v8::Local<v8::Object> instanceTemplate = wrapper->newLocal(info.GetIsolate());
     if (instanceTemplate.IsEmpty())
         return;
 
@@ -58,7 +62,11 @@
 static void npObjectNamedSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* imp = C::toNative(info.Holder());
-    v8::Handle<v8::Object> instanceTemplate = v8::Handle<v8::Object>::Cast(imp->pluginWrapper().v8Value());
+    RefPtr<SharedPersistent<v8::Object> > wrapper = imp->pluginWrapper();
+    if (!wrapper)
+        return;
+
+    v8::Local<v8::Object> instanceTemplate = wrapper->newLocal(info.GetIsolate());
     if (instanceTemplate.IsEmpty())
         return;
 
@@ -120,7 +128,11 @@
 void npObjectIndexedGetter(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* imp = C::toNative(info.Holder());
-    v8::Handle<v8::Object> instanceTemplate = v8::Handle<v8::Object>::Cast(imp->pluginWrapper().v8Value());
+    RefPtr<SharedPersistent<v8::Object> > wrapper = imp->pluginWrapper();
+    if (!wrapper)
+        return;
+
+    v8::Local<v8::Object> instanceTemplate = wrapper->newLocal(info.GetIsolate());
     if (instanceTemplate.IsEmpty())
         return;
 
@@ -131,7 +143,11 @@
 void npObjectIndexedSetter(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* imp = C::toNative(info.Holder());
-    v8::Handle<v8::Object> instanceTemplate = v8::Handle<v8::Object>::Cast(imp->pluginWrapper().v8Value());
+    RefPtr<SharedPersistent<v8::Object> > wrapper = imp->pluginWrapper();
+    if (!wrapper)
+        return;
+
+    v8::Local<v8::Object> instanceTemplate = wrapper->newLocal(info.GetIsolate());
     if (instanceTemplate.IsEmpty())
         return;