Attempt at fixing crash. I believe this is happening during session
end, which has a different shutdown path and is possible for the model
to be deleted before the view.

I'm also adding checking to XPFrame/VistaFrame to make sure the
BookmarkBarView doesn't have a parent in the destructor. This
shouldn't be possible, but I'm adding the check to be sure;)

BUG=1359852
TEST=make sure you don't see problems with bookmarks

Review URL: http://codereview.chromium.org/440

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@1754 0039d316-1c4b-4281-b951-d872f2087c98
6 files changed