Oilpan: have DOMException be on the heap by default.

Source/bindings/core/v8/V8ThrowException.cpp

Index: Source/bindings/core/v8/V8ThrowException.cpp
diff --git a/Source/bindings/core/v8/V8ThrowException.cpp b/Source/bindings/core/v8/V8ThrowException.cpp
index 8fbe87a23b8a45e30370c2186cfef810e3c9be70..37cce11ccfd94dd775b3cacd4079425064834d7a 100644
--- a/Source/bindings/core/v8/V8ThrowException.cpp
+++ b/Source/bindings/core/v8/V8ThrowException.cpp
@@ -73,8 +73,8 @@ v8::Handle<v8::Value> V8ThrowException::createDOMException(v8::Isolate* isolate,
 
     v8::TryCatch tryCatch;
 
-    RefPtrWillBeRawPtr<DOMException> domException = DOMException::create(ec, sanitizedMessage, unsanitizedMessage);
-    v8::Local<v8::Value> exception = toV8(domException.get(), sanitizedCreationContext, isolate);
+    DOMException* domException = DOMException::create(ec, sanitizedMessage, unsanitizedMessage);
+    v8::Local<v8::Value> exception = toV8(domException, sanitizedCreationContext, isolate);
 
     if (tryCatch.HasCaught()) {
         ASSERT(exception.IsEmpty());