style/trusted_ui/trusted_ui.css and style/wrapper/wrapper.css should use progress.gif that is in shared. In wrapper it seems we're using currently a different file so I'm not sure we want to change it (but I think we should) but in trusted_ui I'm sure it's missing.
bb? because this should be 2 one-liners.
Rewording title to target the wrapper - bug 814314 is tracking the trusted UI implementation
Renoming - same argument as https://bugzilla.mozilla.org/show_bug.cgi?id=814314#c3.
Comment on attachment 685603 [details] Patch v1 as the person who added this progress.gif in shared/, it seems good :)
Comment on attachment 685603 [details] Patch v1 https://github.com/mozilla-b2g/gaia/commit/61fe3087657b27dae854fc2da811c7f2092cb25f