Generate dart:html bindings for Dartium as well as Frog. All unittests now pass (or are disabled fo…

client/html/generated/html/dartium/FileEntry.dart

+
+class _FileEntryImpl extends _EntryImpl implements FileEntry {
+  _FileEntryImpl._wrap(ptr) : super._wrap(ptr);
+
+  void createWriter(FileWriterCallback successCallback, [ErrorCallback errorCallback = null]) {
+    if (errorCallback === null) {
+      _ptr.createWriter(_unwrap(successCallback));
+      return;
+    } else {
+      _ptr.createWriter(_unwrap(successCallback), _unwrap(errorCallback));
+      return;
+    }
+  }
+
+  void file(FileCallback successCallback, [ErrorCallback errorCallback = null]) {
+    if (errorCallback === null) {
+      _ptr.file(_unwrap(successCallback));
+      return;
+    } else {
+      _ptr.file(_unwrap(successCallback), _unwrap(errorCallback));
+      return;
+    }
+  }
+}