But, Dragon is based on Chromium, not Chrome, and does not come with PepperFlash. It takes an involved process to get PepperFlash into Dragon and very few users will do it.
They both (Dragon, Iron, Chrome) are Chromium based: the pepperflash is the "official" flash plugins (with the new and more secure ppapi api) for them 'cause it works better (than Adobe's with the old npapi api) with the browser's sandbox.
On August 12, 2009, a page on Google Code introduced a new project, Pepper with the associated Pepper Plugin API (PPAPI), "a set of modifications to NPAPI to make plugins more portable and more secure".
This extension is designed specifically to ease the implementation of out-of-process plugin execution. Further, the goals of the project are to provide a framework for making plugins fully cross-platform.Chromium Google's open source browser was the development web browser that first utilized the new browser plug-in model.