No bug, fix eslint errors introduced when enabling more rules in .eslintrc.js, rs=bustage

MozReview-Commit-ID: GADYtKhyd50

--HG--
extra : rebase_source : 3e2eb3ef0ab081396996cf98452d1b0a7d6bf5ab

toolkit/components/reader/AboutReader.jsm

@@ -118,7 +118,7 @@ var AboutReader = function(mm, win, articlePromise) {
   }
 
   this._loadArticle();
-}
+};
 
 AboutReader.prototype = {
   _BLOCK_IMAGES_SELECTOR: ".content p > img:only-child, " +
@@ -696,7 +696,7 @@ AboutReader.prototype = {
       } else {
         img.removeAttribute("moz-reader-center");
       }
-    }
+    };
 
     let imgs = this._doc.querySelectorAll(this._BLOCK_IMAGES_SELECTOR);
     for (let i = imgs.length; --i >= 0;) {
@@ -707,7 +707,7 @@ AboutReader.prototype = {
       } else {
         img.onload = function() {
           setImageMargins(img);
-        }
+        };
       }
     }
   },

toolkit/components/reader/ReaderMode.jsm

@@ -289,7 +289,7 @@ this.ReaderMode = {
         }
         resolve(doc);
         histogram.add(DOWNLOAD_SUCCESS);
-      }
+      };
       xhr.send();
     });
   },