Use quantitiy string for sharing contacts

    <!-- The menu item to add the the currently viewed contact to your contacts [CHAR LIMIT=30] -->

    <string name="menu_add_contact">Add to contacts</string>

    <!-- Dialog title when picking the application to share a contact with. -->

    <string name="share_via">Share contact via</string>

    <!-- Dialog title when picking the application to share one or multiple contacts with. [CHAR LIMIT=40] -->

    <plurals name="title_share_via">

        <item quantity="one">Share contact via</item>

        <item quantity="other">Share contacts via</item>

    </plurals>

    <!-- Title for the disambiguation dialog that requests the user choose an account for the new label to be created under [CHAR LIMIT=NONE] -->

    <string name="dialog_new_group_account">Choose account</string>

        intent.setType(Contacts.CONTENT_VCARD_TYPE);

        intent.putExtra(Intent.EXTRA_STREAM, uri);

        try {

            // TODO(wenyiw): show different strings based on number of contacts.

            startActivityForResult(Intent.createChooser(intent, getText(R.string.share_via)),

                    ACTIVITY_REQUEST_CODE_SHARE);

            startActivityForResult(Intent.createChooser(intent, getResources().getQuantityString(

                    R.plurals.title_share_via,

                    /* quantity */ mAllFragment.getSelectedContactIds().size()))

                    , ACTIVITY_REQUEST_CODE_SHARE);

        } catch (final ActivityNotFoundException ex) {

            Toast.makeText(this, R.string.share_error, Toast.LENGTH_SHORT).show();

        }

        intent.putExtra(Intent.EXTRA_STREAM, shareUri);

        // Launch chooser to share contact via

        final CharSequence chooseTitle = getText(R.string.share_via);

        final CharSequence chooseTitle = getResources().getQuantityString(

                R.plurals.title_share_via, /* quantity */ 1);

        final Intent chooseIntent = Intent.createChooser(intent, chooseTitle);

        try {