New FormData methods: get, getAll, has, set, delete and iterable

Source/core/html/FormData.idl

Index: Source/core/html/FormData.idl
diff --git a/Source/core/html/FormData.idl b/Source/core/html/FormData.idl
index c4b1c21a830fc9368675191e9ff4a9584887b4eb..04008912df819fae7f3274d9e11b2c5c4f52d925 100644
--- a/Source/core/html/FormData.idl
+++ b/Source/core/html/FormData.idl
@@ -28,7 +28,9 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// https://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#formdata
+// http://xhr.spec.whatwg.org/#interface-formdata
+
+typedef (File or USVString) FormDataEntryValue;
 
 [
     Constructor(optional HTMLFormElement form),
@@ -36,6 +38,14 @@
     ImplementedAs=DOMFormData,
     WillBeGarbageCollected,
 ] interface FormData {
-    void append(DOMString name, Blob value, optional DOMString filename);
-    void append(DOMString name, DOMString value);
+    void append(USVString name, Blob value, optional USVString filename);
+    void append(USVString name, USVString value);
+
+    [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] void set(USVString name, Blob value, optional USVString filename);
+    [RuntimeEnabled=FormDataNewMethods] void set(USVString name, USVString value);
+    [RuntimeEnabled=FormDataNewMethods] iterable<USVString, FormDataEntryValue>;
 };