Menu bar does not directly access the keymap anymore

This makes the keyBindingsForCommand methods obsolete

src/app/menu-bar.coffee

@@ -2,7 +2,7 @@ ipc = require 'ipc'
 
 module.exports =
 class MenuBar
-  @show: ->
+  @show: (keyBindingsByCommand) ->
     atomMenu =
       label: 'Atom'
       submenu: [
@@ -67,18 +67,17 @@ class MenuBar
         label: '\uD83D\uDC80' # Skull emoji
         submenu: [ { label: 'In Development Mode', enabled: false } ]
 
-    @addKeyBindings(menu)
+    @addKeyBindings(menu, keyBindingsByCommand)
     ipc.sendChannel 'build-menu-bar-from-template', menu
 
-  @addKeyBindings: (menuItems) ->
+  @addKeyBindings: (menuItems, keyBindingsByCommand) ->
     for menuItem in menuItems
       if menuItem.command
-        menuItem.accelerator = @acceleratorForCommand(menuItem.command)
-      @addKeyBindings(menuItem.submenu) if menuItem.submenu
+        menuItem.accelerator = @acceleratorForCommand(menuItem.command, keyBindingsByCommand)
+      @addKeyBindings(menuItem.submenu, keyBindingsByCommand) if menuItem.submenu
 
-  @acceleratorForCommand: (command) ->
-    keyBindings = keymap.keyBindingsForCommand(command)
-    keyBinding = keyBindings[0]
+  @acceleratorForCommand: (command, keyBindingsByCommand) ->
+    keyBinding = keyBindingsByCommand[command]?[0]
     return null unless keyBinding
 
     modifiers = keyBinding.split('-')

src/binding-set.coffee

@@ -28,12 +28,6 @@ class BindingSet
       return command if event.keystrokes == keystrokes
     null
 
-  keyBindingsForCommand: (desiredCommand) ->
-    keyBindings = []
-    for keystrokes, command of @commandsByKeystrokes
-      keyBindings.push(keystrokes) if command == desiredCommand
-    keyBindings
-
   matchesKeystrokePrefix: (event) ->
     eventKeystrokes = event.keystrokes.split(' ')
     for keystrokes, command of @commandsByKeystrokes

src/keymap.coffee

@@ -163,12 +163,6 @@ class Keymap
 
     [modifiers..., key].join('-')
 
-  keyBindingsForCommand: (command) ->
-    keyBindings = []
-    for bindingSet in @bindingSets
-      keyBindings = keyBindings.concat(bindingSet.keyBindingsForCommand(command))
-    keyBindings
-
   toObject: ->
     keyBindingsForCommands = {}
     for bindingSet in @bindingSets

src/window.coffee

@@ -55,7 +55,7 @@ window.startEditorWindow = ->
   atom.activatePackages()
   keymap.loadUserKeymaps()
   atom.requireUserInitScript()
-  MenuBar.show()
+  MenuBar.show(keymap.toObject())
   $(window).on 'unload', -> unloadEditorWindow(); false
   atom.show()
   atom.focus()