Bug 1036280 - Newly added links are type=undefined instead of history [r=adw]

Include history type and make link creation the same by removing bgColor/imageURI.

browser/base/content/test/newtab/browser_newtab_update.js

@@ -41,6 +41,9 @@ function runTests() {
   yield whenPagesUpdated(null, true);
   yield addNewTabPageTab();
   checkGrid("2,1,3,4,,,,,");
+
+  // Make sure these added links have the right type
+  is(getCell(1).site.link.type, "history", "added link is history");
 }
 
 function link(id) {

toolkit/modules/NewTabUtils.jsm

@@ -573,9 +573,7 @@ let PlacesProvider = {
               title: title,
               frecency: frecency,
               lastVisitDate: lastVisitDate,
-              bgColor: "transparent",
               type: "history",
-              imageURI: null,
             });
           }
         }
@@ -650,6 +648,7 @@ let PlacesProvider = {
         url: aURI.spec,
         frecency: aNewFrecency,
         lastVisitDate: aLastVisitDate,
+        type: "history",
       });
     }
   },