9f61732e9b
The Browser used to have a concern around mapping text extensions to various text/* mime types. If a text extension mapped to an unknown text/* mime type, the Browser would attempt to download a url instead of just displaying the content. There is another change in external/webkit that uses 2 static functions in DOMImplementation that determine if a mime type is text or xml. The text function in particular checks for a leading "text/" string in the mime type. With that change, pruning text mime types is no longer needed. Bug: 1988375