Add the possibility of taking and saving a screenshot of the whole current page
Submitted by Andres Gomez
Link to original bug (#752764)
Description
When a page is so long that it doesn't fit in the visible area, the only way of getting a full capture is through the printing dialog.
Through printing, we split in pages and the layout is modified.
WebKitGtk+ already has the method webkit_web_view_get_snapshot() http://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-get-snapshot
Therefore, it would be great to provide a way to just be able to create a full screenshot from the visiting page.