[Style] Fix code style

Author: moisseev

chrome/received/content/msgHdrViewOverlay.xul

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?> 
+<?xml version="1.0" encoding="utf-8"?>
 
 <overlay id="mailingListHeaderOverlay"
          xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

chrome/received/content/scripts/messageHeader.js

@@ -1,39 +1,43 @@
+/* global Received:readonly */
+
 "use strict";
 
 Received.Message = {};
 
-Received.Message.displayReceivedHeader = function() {
-    var regexp = Services.prefs.getCharPref("extensions.received.regexp");
-    var rowEl = document.getElementById("expandedReceivedRow");
-    var hdrEl = document.getElementById("receivedReceivedHeader");
-    var msg = gMessageDisplay.displayedMessage;
+Received.Message.displayReceivedHeader = function () {
+    const regexp = Services.prefs.getCharPref("extensions.received.regexp");
+    const rowEl = document.getElementById("expandedReceivedRow");
+    const hdrEl = document.getElementById("receivedReceivedHeader");
+    const msg = gMessageDisplay.displayedMessage;
 
     rowEl.collapsed = true;
 
     if (!msg.folder) {
-        return
-    };
+        return;
+    }
 
-    MsgHdrToMimeMessage(msg, null, function(aMsgHdr, aMimeMsg) {
-        var parsed = Received.parseReceivedHeaders(aMimeMsg.headers, regexp);
-        rowEl.collapsed = (parsed.length == 0);
+    MsgHdrToMimeMessage(msg, null, function (aMsgHdr, aMimeMsg) {
+        const parsed = Received.parseReceivedHeaders(aMimeMsg.headers, regexp);
+        rowEl.collapsed = (parsed.length === 0);
         hdrEl.headerValue = parsed;
         hdrEl.valid = true;
     }, true, {
         partsOnDemand: true
     });
-}
+};
 
-Received.Message.onLoad = function() {
-    var listener = {};
-    listener.onStartHeaders = function() {};
-    listener.onEndHeaders = function() {
+Received.Message.onLoad = function () {
+    const listener = {};
+    listener.onStartHeaders = function () {
+        // do nothing
+    };
+    listener.onEndHeaders = function () {
         Received.Message.displayReceivedHeader();
     };
     gMessageListeners.push(listener);
 };
 
-Received.Message.onUnload = function() {
+Received.Message.onUnload = function () {
     window.removeEventListener("load", Received.Message.onLoad, false);
     window.removeEventListener("unload", Received.Message.onUnload, false);
 };

chrome/received/content/scripts/received.js

@@ -2,21 +2,21 @@
 
 Components.utils.import("resource://gre/modules/Services.jsm");
 
-var Received = {};
+const Received = {};
 
-Received.parseReceivedHeader = function(headerStr, regexp) {
-        var capturedSubstr = headerStr.match(new RegExp(regexp));
-        if (capturedSubstr == null)
-            return null;
+Received.parseReceivedHeader = function (headerStr, regexp) {
+    const capturedSubstr = headerStr.match(new RegExp(regexp));
+    if (capturedSubstr === null)
+        return null;
     return capturedSubstr[1];
 };
 
-Received.parseReceivedHeaders = function(headers, regexp) {
-    var received = Array();
-    if ('received' in headers) {
-        headers['received'].forEach(function(header) {
-            var parsed = Received.parseReceivedHeader(header, regexp);
-            if (parsed != null)
+Received.parseReceivedHeaders = function (headers, regexp) {
+    const received = [];
+    if ("received" in headers) {
+        headers.received.forEach(function (header) {
+            const parsed = Received.parseReceivedHeader(header, regexp);
+            if (parsed !== null)
                 received.push(parsed);
         });
     }

defaults/preferences/received.js

@@ -1 +1,5 @@
+/* global pref:readonly */
+
+"use strict";
+
 pref("extensions.received.regexp", "(.*)");