Merge "Always call through to super.onBackPressed in DialtactsActivity"

        } else if (getInSearchUi()) {

            mSearchView.setText(null);

            mDialpadFragment.clearDialpad();

        } else if (isTaskRoot()) {

            // Instead of stopping, simply push this to the back of the stack.

            // This is only done when running at the top of the stack;

            // otherwise, we have been launched by someone else so need to

            // allow the user to go back to the caller.

            moveTaskToBack(false);

        } else {

            super.onBackPressed();

        }