Changes

// List of known settings.

const DOMString FOOBAR = "foobar";

// Setters. SettingsRequest.result is always null.

SettingsRequest set(DOMString name, DOMString value);

SettingsRequest set(DOMString name, long long value);

SettingsRequest set(DOMString name, float value);

// Getters. SettingsRequest.result will be of the requested type if the success event is sent.

SettingsRequest getString(DOMString name);