Kent has largely worked on HTML forms. In that area, he implemented many features from HTML 5 including form validation and UI elements in addition to fixing many old form bugs. Recently, he’s also been doing great work getting Chromium’s DumpRenderTree into the WebKit tree.
Ojan started his work in WebKit by fixing various editing and form control compatibility bugs. Later, he helped with various infrastructure pieces like making webkit-patch work better with git and making layout tests less flaky. Lately, he has been working on fixing selection bugs and making them obey the platform specific conventions.
Please join me in congratulating Kent and Ojan on their reviewer status!