http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/Here you will find the source code for these third-party components for the latest release of Chromium, clearly labelled as such, and using their individual package names. Not all of these components are required to be distributed as such, but the Chromium Project has elected to open it's code completely.
Unless Comodo elected to develop it's own spellchecker from scratch, (as the most simply-described component with open-code requirements) among other components, I would suggest following through on releasing the required code. Such a page does not need not be overly fancy.
If these components are entirely unchanged, simply listing and linking each component to it's corresponding entry on the google code (for that version) would be a start. However, talk with your developers to discern which of these parts were modified, so that you don't attribute some of your personalized code to others' work.
Linking specific items to their source in Google's list of Third party code would be just like Linux Mint using an Ubuntu Linux repository. Mint is derived from Ubuntu, and uses Ubuntu components wholly unmodified. Why bother hosting those yourself?
I must heartily recommend that you put a notice of this situation on the download page for Dragon. "Dragon, like Chromium, uses components which require that their code be released.
Click here to view the code," and list hyperlinks, labeled by the component name.
Each version of the Chromium-based Dragon browser should have its own list. How you organize the versions components is up to you, so long as it is clear which is which, and that you display them for each version of Dragon. Folders, as Google did, is common, though their webpage interface is somewhat unneccesary. A single page, with headings labeling a following list as from a particular version of Dragon is also acceptable. Comodo's own standards can determine the format of this page.
I would suggest talking to your developers to ask not only if they have modified these components, but also if they could see a need to do so in the foreseeable future. That way, you don't necessarily have to reorganize the page when your developers make such a change in the code for Dragon.
Any of these components which Comodo has modified can be released in whatever format Comodo choses. Pdf files are generally avoided because they waste space and bandwidth. Htm/html pages are better, for a better browsing experience. Releasing the original ".c", ".h", etc text files for download is perfectly acceptable, even commendable: no frills are necessary, the user can compile them directly, and this will use less space on Comodo's servers. The only oddity with releasing the original source files is that you may have to give instructions as to how to open them in notepad.
I certainly will follow through with other chromium-based browsers that I find. From this forum, I hope to then wander over to see the folks that make Iron Browser. I'll add ChromePlus from SRWare and the Flock Project to my list.
I must apologize for my gruff presentation earlier. Carrying this through doesn't need to be a painful process.