Adding supported checks and flags to FormData

tools/dom/scripts/generator.py

Index: tools/dom/scripts/generator.py
diff --git a/tools/dom/scripts/generator.py b/tools/dom/scripts/generator.py
index 47d022cb5ff51e4cf22bacaa4aa6567a129f8310..b6b032714eaee297fea07a23aff753612ef03d7a 100644
--- a/tools/dom/scripts/generator.py
+++ b/tools/dom/scripts/generator.py
@@ -751,6 +751,7 @@ dart_annotations = {
   ],
   'FileSystem': _file_system_annotations,
   'FileSystemSync': _file_system_annotations,
+  'FormData': _all_but_ie9_annotations,
   'HashChangeEvent': [
     "@SupportedBrowser(SupportedBrowser.CHROME)",
     "@SupportedBrowser(SupportedBrowser.FIREFOX)",
@@ -860,6 +861,9 @@ dart_annotations = {
   'WorkerContext.webkitRequestFileSystemSync': _file_system_annotations,
   'WorkerContext.webkitResolveLocalFileSystemSyncURL': _file_system_annotations,
   'WorkerContext.webkitResolveLocalFileSystemURL': _file_system_annotations,
+  'XMLHttpRequest.onloadend': _all_but_ie9_annotations,
+  'XMLHttpRequest.onprogress': _all_but_ie9_annotations,
+  'XMLHttpRequest.response': _all_but_ie9_annotations,
   'XMLHttpRequestProgressEvent': _webkit_experimental_annotations,
   'XSLTProcessor': [
     "@SupportedBrowser(SupportedBrowser.CHROME)",