Adds back BookmarkNode::IsVisible. Turns out we want to conditionally

Adds back BookmarkNode::IsVisible. Turns out we want to conditionally
show a node, so we need it. *SIGH*

For the most part this is a revert of
http://codereview.chromium.org/8759017/, so don't feel you need to
review it that deeply.

BUG=102714
TEST=none
TBR=ben@chromium.org

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=112897

[sky, 2011-12-02 23:29:06]

brett: bookmark_model. A future patch will add an explicit setter for the
visibility of the mobile folder.
ben: the rest.

I'm TBRin'g ben since this is largely a revert. The only new bit is in
bookmark_model.

  -Scott

[brettw, 2011-12-02 23:36:43]

lgtm

[Ben Goodger (Google), 2011-12-02 23:39:47]

lgtm

On Fri, Dec 2, 2011 at 3:36 PM, <brettw@chromium.org> wrote:

> lgtm
>
>
>
>
http://codereview.chromium.**org/8772064/<http://codereview.chromium.org/8772...
>

[commit-bot: I haz the power, 2011-12-03 15:53:42]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/sky@chromium.org/8772064/1001

[commit-bot: I haz the power, 2011-12-03 20:50:14]

Change committed as 112897