Oilpan: Replace most of RefPtrs for Event objects with oilpan's transition types

Source/core/loader/FormSubmission.cpp

Index: Source/core/loader/FormSubmission.cpp
diff --git a/Source/core/loader/FormSubmission.cpp b/Source/core/loader/FormSubmission.cpp
index f4229773c26ca01b61998230b4592cdf84613fda..97919516b1d1dbf1bbf3937ff3a9aab1cd934953 100644
--- a/Source/core/loader/FormSubmission.cpp
+++ b/Source/core/loader/FormSubmission.cpp
@@ -143,7 +143,7 @@ void FormSubmission::Attributes::copyFrom(const Attributes& other)
     m_acceptCharset = other.m_acceptCharset;
 }
 
-inline FormSubmission::FormSubmission(Method method, const KURL& action, const AtomicString& target, const AtomicString& contentType, PassRefPtr<FormState> state, PassRefPtr<FormData> data, const String& boundary, PassRefPtr<Event> event)
+inline FormSubmission::FormSubmission(Method method, const KURL& action, const AtomicString& target, const AtomicString& contentType, PassRefPtr<FormState> state, PassRefPtr<FormData> data, const String& boundary, PassRefPtrWillBeRawPtr<Event> event)
     : m_method(method)
     , m_action(action)
     , m_target(target)
@@ -161,7 +161,7 @@ inline FormSubmission::FormSubmission(const String& result)
 {
 }
 
-PassRefPtr<FormSubmission> FormSubmission::create(HTMLFormElement* form, const Attributes& attributes, PassRefPtr<Event> event, FormSubmissionTrigger trigger)
+PassRefPtr<FormSubmission> FormSubmission::create(HTMLFormElement* form, const Attributes& attributes, PassRefPtrWillBeRawPtr<Event> event, FormSubmissionTrigger trigger)
 {
     ASSERT(form);