Add google fonts to TinyMCE

TinyMCE Fonts

<?php
/* TinyMCE fonts ~~> */
function ter_mce_google_fonts_array($initArray){
    $theme_advanced_fonts .= 'Arimo=Arimo;';
    $theme_advanced_fonts .= 'Fredoka One=Fredoka One;';
    $theme_advanced_fonts .= 'Oswald=Oswald;';
    $initArray['font_formats'] = $theme_advanced_fonts;
    $initArray['font_formats'] .= 'Lato=Lato;Andale Mono=andale mono,times;Arial=arial,helvetica,sans-serif;Arial Black=arial black,avant garde;Book Antiqua=book antiqua,palatino;Comic Sans MS=comic sans ms,sans-serif;Courier New=courier new,courier;Georgia=georgia,palatino;Helvetica=helvetica;Impact=impact,chicago;Symbol=symbol;Tahoma=tahoma,arial,helvetica,sans-serif;Terminal=terminal,monaco;Times New Roman=times new roman,times;Trebuchet MS=trebuchet ms,geneva;Verdana=verdana,geneva;Webdings=webdings;Wingdings=wingdings,zapf dingbats;';
    return $initArray;
}
add_filter('tiny_mce_before_init','ter_mce_google_fonts_array');

function ter_mce_google_fonts_styles(){
   $font1 = 'http://fonts.googleapis.com/css?family=Oswald';
   add_editor_style( str_replace( ',', '%2C', $font1 ) );
   $font2 = 'http://fonts.googleapis.com/css?family=Fredoka+One';
   add_editor_style( str_replace( ',', '%2C', $font2 ) );
   $font3 = 'http://fonts.googleapis.com/css?family=Arimo:400,700,400italic';
   add_editor_style( str_replace( ',', '%2C', $font3 ) );
}
add_action( 'admin_init', 'ter_mce_google_fonts_styles' );

function ter_mce_font_family_dropdown_fonts(){
    echo '<link type="text/css" rel="stylesheet" href="http://fonts.googleapis.com/css?family=Oswald">';
    echo '<link type="text/css" rel="stylesheet" href="http://fonts.googleapis.com/css?family=Fredoka+One">';
    echo '<link type="text/css" rel="stylesheet" href="http://fonts.googleapis.com/css?family=Arimo:400,700,400italic">';
}
add_action('admin_head','ter_mce_font_family_dropdown_fonts');

function schema_TinyMCE_init($in)
{
    /**
     *   Edit extended_valid_elements as needed. For syntax, see
     *   http://www.tinymce.com/wiki.php/Configuration:valid_elements
     *
     *   NOTE: Adding an element to extended_valid_elements will cause TinyMCE to ignore
     *   default attributes for that element.
     *   Eg. a[title] would remove href unless included in new rule: a[title|href]
     */
    if(!empty($in['extended_valid_elements']))
        $in['extended_valid_elements'] .= ',';

    $in['extended_valid_elements'] .= '@[id|class|style|title|itemscope|itemtype|itemprop|datetime|rel],div,dl,ul,dt,dd,li,span,a|rev|charset|href|lang|tabindex|accesskey|type|name|href|target|title|class|onfocus|onblur]';

    return $in;
}
add_filter('tiny_mce_before_init', 'schema_TinyMCE_init' );
?>