Make a bunch of backlogged breaking changes to the extensions

chrome/test/data/extensions/samples/screenshot/screenshot.js

 function takeScreenshot() {  
   chrome.tabs.captureVisibleTab(null, function(img) {
     var screenshotUrl = img;
     var viewTabUrl = chrome.extension.getURL('screenshot.html');
 
     chrome.tabs.create({url: viewTabUrl}, function(tab) {
       var targetId = tab.id;
 
       chrome.tabs.onUpdated.addListener(function(tabId, changedProps) {
         if (tabId == targetId &&
             changedProps.status == "complete") {
-          var views = chrome.self.getViews();
+          var views = chrome.extension.getViews();
           for (var i = 0; i < views.length; i++) {
             var view = views[i];
             if (view.location.href == viewTabUrl) {
               view.setScreenshotUrl(screenshotUrl);
             }
           }
         }
       });
     })
   });
 };