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 BrowserEventRouter::TabUpdated(WebContents* contents, bool did_navigate) {
  TabEntry* entry = GetTabEntry(contents);
  DictionaryValue* changed_properties = NULL;

  DCHECK(entry);

  if (did_navigate)
    changed_properties = entry->DidNavigate(contents);
  else
    changed_properties = entry->UpdateLoadState(contents);

  if (changed_properties)
    DispatchTabUpdatedEvent(contents, changed_properties);
}

void BrowserEventRouter::TabUpdated(WebContents* contents, bool did_navigate) {
  TabEntry* entry = GetTabEntry(contents);
  DictionaryValue* changed_properties = NULL;

  DCHECK(entry);

  if (did_navigate)
    changed_properties = entry->DidNavigate(contents);
  else
    changed_properties = entry->UpdateLoadState(contents);

  if (changed_properties)
    DispatchTabUpdatedEvent(contents, changed_properties);
}
