Don't open drawer when back is pressed after being launched externally.

                return true;

            }

            // Open the Close drawer if it is closed and we're at the top of a root.

            if (size <= 1) {

            final Intent intent = getIntent();

            final boolean launchedExternally = intent != null && intent.getData() != null

                    && mState.action == State.ACTION_BROWSE;

            // Open the Close drawer if it is closed and we're at the top of a root, but only when

            // not launched by another app.

            if (size <= 1 && !launchedExternally) {

                mDrawer.setOpen(true);

                // Remember so we don't just close it again if back is pressed again.

                mDrawerLastFiddled = System.currentTimeMillis();