Remove TabContents from TabStripModelObserver::TabDetachedAt.

BUG=107201
TEST=no visible change


Review URL: https://chromiumcodereview.appspot.com/11293205

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167122 0039d316-1c4b-4281-b951-d872f2087c98
void BrowserCommandController::UpdateOpenFileState() {
  bool enabled = true;
  PrefService* local_state = g_browser_process->local_state();
  if (local_state)
    enabled = local_state->GetBoolean(prefs::kAllowFileSelectionDialogs);

  command_updater_.UpdateCommandEnabled(IDC_OPEN_FILE, enabled);
}

void BrowserCommandController::UpdateOpenFileState() {
  bool enabled = true;
  PrefService* local_state = g_browser_process->local_state();
  if (local_state)
    enabled = local_state->GetBoolean(prefs::kAllowFileSelectionDialogs);

  command_updater_.UpdateCommandEnabled(IDC_OPEN_FILE, enabled);
}
