Port everything to class framework

The last patch in the sequence. Every place that was previously
setting prototype has been ported to Lang.Class, to make code more
concise and allow for better toString().

https://bugzilla.gnome.org/show_bug.cgi?id=664436

js/ui/layout.js

@@ -17,11 +17,9 @@ const HOT_CORNER_ACTIVATION_TIMEOUT = 0.5;
 const STARTUP_ANIMATION_TIME = 0.2;
 const KEYBOARD_ANIMATION_TIME = 0.5;
 
-function LayoutManager() {
-    this._init.apply(this, arguments);
-}
+const LayoutManager = new Lang.Class({
+    Name: 'LayoutManager',
 
-LayoutManager.prototype = {
     _init: function () {
         this._rtl = (St.Widget.get_default_direction() == St.TextDirection.RTL);
         this.monitors = [];
@@ -374,7 +372,7 @@ LayoutManager.prototype = {
     findMonitorForActor: function(actor) {
         return this._chrome.findMonitorForActor(actor);
     }
-};
+});
 Signals.addSignalMethods(LayoutManager.prototype);
 
 
@@ -382,11 +380,9 @@ Signals.addSignalMethods(LayoutManager.prototype);
 //
 // This class manages a "hot corner" that can toggle switching to
 // overview.
-function HotCorner() {
-    this._init();
-}
+const HotCorner = new Lang.Class({
+    Name: 'HotCorner',
 
-HotCorner.prototype = {
     _init : function() {
         // We use this flag to mark the case where the user has entered the
         // hot corner and has not left both the hot corner and a surrounding
@@ -548,7 +544,7 @@ HotCorner.prototype = {
             return true;
         return false;
     }
-};
+});
 
 
 // This manages the shell "chrome"; the UI that's visible in the
@@ -561,11 +557,9 @@ const defaultParams = {
     affectsInputRegion: true
 };
 
-function Chrome() {
-    this._init.apply(this, arguments);
-}
+const Chrome = new Lang.Class({
+    Name: 'Chrome',
 
-Chrome.prototype = {
     _init: function(layoutManager) {
         this._layoutManager = layoutManager;
 
@@ -981,4 +975,4 @@ Chrome.prototype = {
 
         return false;
     }
-};
+});