see_youtube_viewcount_inline.js

// ==UserScript==
// @name         See YouTube ViewCount Inline
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  A small script to allow one to see the number of views a youtube search result 
//               has in a google search results set.  To use this script, obtain a YouTube API key,
//               then on line 40 below paste your API key over the YOUR_API_KEY_STRING text.
// @author       SputterPuttRedux
// @match        https://www.google.com/search?*
// @grant        none
// @require      http://code.jquery.com/jquery-latest.js
// @require      https://gist.github.com/raw/2625891/waitForKeyElements.js
// @include      https://www.google.com*
// ==/UserScript==

function getYouTubeViewCount(elem){
  function addViewCountToDom(){
    var urlString = elem.siblings().find("cite").html();

    if(urlString && urlString.includes('youtube.com')){
      var videoId = videoIdFromUrlString(urlString);
      var formattedUrl = formattedUrlForApiCall(videoId);
      $.ajax({
        type: 'GET',
        url: formattedUrl,
        dataType: 'html'
      }).done(function(response){
        var respObj = JSON.parse(response);
        var viewCountNum = respObj.items[0].statistics.viewCount;
        elem.append(" | Views:  " + commaFormattedNumber(viewCountNum));
      });
    }
  }

  function commaFormattedNumber(numStr){
    return numStr.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
  }

  function formattedUrlForApiCall(videoId){
    return 'https://www.googleapis.com/youtube/v3/videos?part=statistics&id=' + videoId + '&key=YOUR_API_KEY_STRING';
  }

  function videoIdFromUrlString(urlString){
    return urlString.split("?v=").pop();
  }
  addViewCountToDom();
}

waitForKeyElements (".slp", getYouTubeViewCount);

One line 38, you'll see that i reference a YouTube API key. Here are instructions for how to get your own. Copy and paste your key after &key= on that line and voila.