Get rid of the ugly ATOM_BROWSER_INTERNAL_NEW message.

browser/api/lib/browser-window.coffee

@@ -1,16 +1,27 @@
 EventEmitter = require('events').EventEmitter
+IDWeakMap = require 'id-weak-map'
 app = require 'app'
-v8Util = process.atomBinding 'v8_util'
 
 BrowserWindow = process.atomBinding('window').BrowserWindow
 BrowserWindow::__proto__ = EventEmitter.prototype
 
+# Store all created windows in the weak map.
+BrowserWindow.windows = new IDWeakMap
+
 BrowserWindow::_init = ->
   # Simulate the application menu on platforms other than OS X.
   if process.platform isnt 'darwin'
     menu = app.getApplicationMenu()
     @setMenu menu if menu?
 
+  # Remember the window.
+  id = BrowserWindow.windows.add this
+
+  # Remove the window from weak map immediately when it's destroyed, since we
+  # could be iterating windows before GC happended.
+  @once 'destroyed', ->
+    BrowserWindow.windows.remove id if BrowserWindow.windows.has id
+
   # Tell the rpc server that a render view has been deleted and we need to
   # release all objects owned by it.
   @on 'render-view-deleted', (event, processId, routingId) ->
@@ -30,12 +41,16 @@ BrowserWindow::setMenu = (menu) ->
   @menu = menu  # Keep a reference of menu in case of GC.
   @menu.attachToWindow this
 
+BrowserWindow.getAllWindows = ->
+  windows = BrowserWindow.windows
+  windows.get key for key in windows.keys()
+
 BrowserWindow.getFocusedWindow = ->
-  windows = app.getBrowserWindows()
+  windows = BrowserWindow.getAllWindows()
   return window for window in windows when window.isFocused()
 
 BrowserWindow.fromProcessIdAndRoutingId = (processId, routingId) ->
-  windows = app.getBrowserWindows()
+  windows = BrowserWindow.getAllWindows()
   return window for window in windows when window.getProcessId() == processId and
                                            window.getRoutingId() == routingId