[bindings] Let getShadowObjectTemplate return Local<>.

Source/bindings/core/v8/WindowProxy.cpp

Index: Source/bindings/core/v8/WindowProxy.cpp
diff --git a/Source/bindings/core/v8/WindowProxy.cpp b/Source/bindings/core/v8/WindowProxy.cpp
index b50cef9aedecb5b7bb1f01525b84396539af9e6f..b26bb37a59c5c8406547c4800b06c8e095570134 100644
--- a/Source/bindings/core/v8/WindowProxy.cpp
+++ b/Source/bindings/core/v8/WindowProxy.cpp
@@ -257,7 +257,7 @@ void WindowProxy::createContext()
 
     // Create a new environment using an empty template for the shadow
     // object. Reuse the global object if one has been created earlier.
-    v8::Handle<v8::ObjectTemplate> globalTemplate = V8Window::getShadowObjectTemplate(m_isolate);
+    v8::Local<v8::ObjectTemplate> globalTemplate = V8Window::getShadowObjectTemplate(m_isolate);
     if (globalTemplate.IsEmpty())
         return;