Remove encoding parameter from createMultiPartFormData() and createFormData()

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 283b54c19f6819f3b71f61b1b3b3f151780c8fd3..63d1bf80135cabd30d21a054c2d8e53d5cd9a1ab 100644
--- a/Source/core/loader/FormSubmission.cpp
+++ b/Source/core/loader/FormSubmission.cpp
@@ -229,10 +229,10 @@ PassRefPtr<FormSubmission> FormSubmission::create(HTMLFormElement* form, const A
     String boundary;
 
     if (isMultiPartForm) {
-        formData = domFormData->createMultiPartFormData(domFormData->encoding());
+        formData = domFormData->createMultiPartFormData();
         boundary = formData->boundary().data();
     } else {
-        formData = domFormData->createFormData(domFormData->encoding(), attributes.method() == GetMethod ? FormData::FormURLEncoded : FormData::parseEncodingType(encodingType));
+        formData = domFormData->createFormData(attributes.method() == GetMethod ? FormData::FormURLEncoded : FormData::parseEncodingType(encodingType));
         if (copiedAttributes.method() == PostMethod && isMailtoForm) {
             // Convert the form data into a string that we put into the URL.
             appendMailtoPostFormDataToURL(actionURL, *formData, encodingType);