These are the files and lines where I found “google” mentioned in WordPress’s default install of the twentysixteen theme:
./wp-admin/includes/class-wp-site-icon.php:53: * @link https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android
./wp-admin/includes/network.php:184: 'https://www.google.com/search?q=apache+mod_rewrite'
./wp-admin/includes/class-wp-press-this.php:812: $open_sans_font_url = ',' . add_query_arg( $query_args, 'https://fonts.googleapis.com/css' );
./wp-content/themes/twentysixteen/genericons/genericons.css:161:.genericon-googleplus:before { content: "\f206"; }
./wp-content/themes/twentysixteen/genericons/genericons.css:162:.genericon-googleplus-alt:before { content: "\f218"; }
./wp-content/themes/twentysixteen/genericons/README.md:106:*Again, it is important if you choose to update to this version, make sure you're not using <code>genericon-googleplus-alt</code> or unicode character <code>f218</code>, as that has been retired! Use <code>genericon-googleplus</code> and glyph <code>f206</code> instead!*
./wp-content/themes/twentysixteen/style.css:952:.social-navigation a[href*="plus.google.com"]:before {
./wp-content/themes/twentysixteen/functions.php:207: ), 'https://fonts.googleapis.com/css' );
./wp-includes/ID3/module.audio-video.riff.php:1326: // https://code.google.com/p/amv-codec-tools/wiki/AmvDocumentation
./wp-includes/vars.php:68: if ( $is_chrome = apply_filters( 'use_google_chrome_frame', $is_admin ) )
./wp-includes/atomlib.php:6: * @link https://code.google.com/p/phpatomlib/
./wp-includes/script-loader.php:173: $scripts->add( 'prototype', 'https://ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/prototype.js', array(), '1.7.1');
./wp-includes/script-loader.php:174: $scripts->add( 'scriptaculous-root', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/scriptaculous.js', array('prototype'), '1.9.0');
./wp-includes/script-loader.php:175: $scripts->add( 'scriptaculous-builder', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/builder.js', array('scriptaculous-root'), '1.9.0');
./wp-includes/script-loader.php:176: $scripts->add( 'scriptaculous-dragdrop', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/dragdrop.js', array('scriptaculous-builder', 'scriptaculous-effects'), '1.9.0');
./wp-includes/script-loader.php:177: $scripts->add( 'scriptaculous-effects', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/effects.js', array('scriptaculous-root'), '1.9.0');
./wp-includes/script-loader.php:178: $scripts->add( 'scriptaculous-slider', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/slider.js', array('scriptaculous-effects'), '1.9.0');
./wp-includes/script-loader.php:179: $scripts->add( 'scriptaculous-sound', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/sound.js', array( 'scriptaculous-root' ), '1.9.0' );
./wp-includes/script-loader.php:180: $scripts->add( 'scriptaculous-controls', 'https://ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/controls.js', array('scriptaculous-root'), '1.9.0');
./wp-includes/script-loader.php:708: $open_sans_font_url = "https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,300,400,600&subset=$subsets";
./wp-includes/js/tinymce/plugins/media/plugin.js:21: {regex: /maps\.google\.([a-z]{2,3})\/maps\/(.+)msid=(.+)/, type: 'iframe', w: 425, h: 350, url: '//maps.google.com/maps/ms?msid=$2&output=embed"', allowFullscreen: false}
./wp-includes/js/tinymce/plugins/media/plugin.min.js
./wp-includes/css/dashicons.css:802:.dashicons-googleplus:before {
