Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

core/html/FormData.idl

Index: core/html/FormData.idl
diff --git a/core/html/FormData.idl b/core/html/FormData.idl
index dccbd43de03f2eca2feeff50b9b4c2493fe2bac0..70df8feb560eab3a0aec50700d446f9a511e7e73 100644
--- a/core/html/FormData.idl
+++ b/core/html/FormData.idl
@@ -37,7 +37,7 @@ typedef (File or USVString) FormDataEntryValue;
     Constructor(optional HTMLFormElement form),
     Exposed=(Window,Worker),
     GarbageCollected,
-    ImplementedAs=DOMFormData,
+    LegacyInterfaceTypeChecking,
 ] interface FormData {
     // TODO(philipj): The value argument should be FormDataEntryValue and there
     // should be no optional filename argument. crbug.com/498790
@@ -47,7 +47,7 @@ typedef (File or USVString) FormDataEntryValue;
     [RuntimeEnabled=FormDataNewMethods, ImplementedAs=deleteEntry] void delete(USVString name);
     [RuntimeEnabled=FormDataNewMethods] FormDataEntryValue? get(USVString name);
     [RuntimeEnabled=FormDataNewMethods] sequence<FormDataEntryValue> getAll(USVString name);
-    [RuntimeEnabled=FormDataNewMethods, ImplementedAs=hasEntry] boolean has(USVString name);
+    [RuntimeEnabled=FormDataNewMethods] boolean has(USVString name);
     // TODO(philipj): The value argument should be FormDataEntryValue and there
     // should be no optional filename argument.
     [RuntimeEnabled=FormDataNewMethods] void set(USVString name, Blob value, optional USVString filename);