Media Galleries: Update tooltips in permission dialogs when galleries change.

Media Galleries: Update tooltips in permission dialogs when galleries change.

TEST=In the media gallery permission dialog, hover over the gallery entry for a
USB drive and see a path. Unplug the device and hover over the now detached
gallery should no longer show a tooltip.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=180049

[Lei Zhang, 2013-01-30 22:44:58]

I should mention, the Mac version already does this.

[Lei Zhang, 2013-01-31 22:58:58]

Greg, can you review this? I figured you probably read all this code recently so
it's fresh in your mind.

[Greg Billock, 2013-01-31 23:01:21]

lgtm

https://chromiumcodereview.appspot.com/12090078/diff/1/chrome/browser/ui/view...
File chrome/browser/ui/views/extensions/media_galleries_dialog_views.cc (right):

https://chromiumcodereview.appspot.com/12090078/diff/1/chrome/browser/ui/view...
chrome/browser/ui/views/extensions/media_galleries_dialog_views.cc:112:
MediaGalleriesDialogController::GetGalleryTooltip(*gallery);
Good. I did this in my change as well. It'll merge nicely.

[commit-bot: I haz the power, 2013-01-31 23:17:47]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thestig@chromium.org/12090078/1

[commit-bot: I haz the power, 2013-02-01 03:02:36]

Change committed as 180049