Start moving AtomEnvironment instantiation bits inside the snapshot

src/atom-environment.coffee

@@ -131,15 +131,22 @@ class AtomEnvironment extends Model
 
   # Call .loadOrCreate instead
   constructor: (params={}) ->
-    {@applicationDelegate, @window, @document, @blobStore, @clipboard, @configDirPath, @enablePersistence, onlyLoadBaseStyleSheets} = params
+    {@applicationDelegate, @clipboard, @enablePersistence, onlyLoadBaseStyleSheets} = params
 
     @nextProxyRequestId = 0
     @unloaded = false
     @loadTime = null
-    {devMode, safeMode, resourcePath, clearWindowState} = @getLoadSettings()
-
     @emitter = new Emitter
     @disposables = new CompositeDisposable
+    @deserializers = new DeserializerManager(this)
+    @deserializeTimings = {}
+    @views = new ViewRegistry(this)
+    @notifications = new NotificationManager
+    @config = new Config({notificationManager: @notifications, @enablePersistence})
+
+  initialize: (params={}) ->
+    {@applicationDelegate, @window, @document, @blobStore, @clipboard, @configDirPath, @enablePersistence, onlyLoadBaseStyleSheets} = params
+    {devMode, safeMode, resourcePath, clearWindowState} = @getLoadSettings()
 
     @stateStore = new StateStore('AtomEnvironments', 1)
 
@@ -147,14 +154,9 @@ class AtomEnvironment extends Model
       @getStorageFolder().clear()
       @stateStore.clear()
 
-    @deserializers = new DeserializerManager(this)
-    @deserializeTimings = {}
+    @views.initialize()
 
-    @views = new ViewRegistry(this)
-
-    @notifications = new NotificationManager
-
-    @config = new Config({@configDirPath, resourcePath, notificationManager: @notifications, @enablePersistence})
+    @config.initialize({@configDirPath, resourcePath})
     @setConfigSchema()
 
     @keymaps = new KeymapManager({@configDirPath, resourcePath, notificationManager: @notifications})

src/config.coffee

@@ -398,11 +398,13 @@ class Config
     value
 
   # Created during initialization, available as `atom.config`
-  constructor: ({@configDirPath, @resourcePath, @notificationManager, @enablePersistence}={}) ->
+  constructor: ({@notificationManager, @enablePersistence}={}) ->
+    @clear()
+
+  initialize: ({@configDirPath, @resourcePath}) ->
     if @enablePersistence?
       @configFilePath = fs.resolve(@configDirPath, 'config', ['json', 'cson'])
       @configFilePath ?= path.join(@configDirPath, 'config.cson')
-    @clear()
 
   clear: ->
     @emitter = new Emitter

src/initialize-application-window.coffee

@@ -55,6 +55,15 @@ require('welcome')
 require('whitespace')
 require('wrap-guide')
 
+clipboard = new Clipboard
+TextEditor.setClipboard(clipboard)
+
+window.atom = new AtomEnvironment({
+  clipboard,
+  applicationDelegate: new ApplicationDelegate,
+  enablePersistence: true
+})
+
 # Like sands through the hourglass, so are the days of our lives.
 module.exports = ({blobStore}) ->
   {updateProcessEnv} = require('./update-process-env')
@@ -73,14 +82,9 @@ module.exports = ({blobStore}) ->
   # Make React faster
   process.env.NODE_ENV ?= 'production' unless devMode
 
-  clipboard = new Clipboard
-  TextEditor.setClipboard(clipboard)
-
-  window.atom = new AtomEnvironment({
-    window, document, clipboard, blobStore,
-    applicationDelegate: new ApplicationDelegate,
+  window.atom.initialize({
+    window, document, blobStore,
     configDirPath: process.env.ATOM_HOME,
-    enablePersistence: true,
     env: process.env
   })
 

src/view-registry.coffee

@@ -54,9 +54,12 @@ class ViewRegistry
   minimumPollInterval: 200
 
   constructor: (@atomEnvironment) ->
-    @observer = new MutationObserver(@requestDocumentPoll)
+    @polling = false
     @clear()
 
+  initialize: ->
+    @observer = new MutationObserver(@requestDocumentPoll)
+
   clear: ->
     @views = new WeakMap
     @providers = []
@@ -267,10 +270,13 @@ class ViewRegistry
   startPollingDocument: ->
     window.addEventListener('resize', @requestDocumentPoll)
     @observer.observe(document, {subtree: true, childList: true, attributes: true})
+    @polling = true
 
   stopPollingDocument: ->
-    window.removeEventListener('resize', @requestDocumentPoll)
-    @observer.disconnect()
+    if @polling
+      window.removeEventListener('resize', @requestDocumentPoll)
+      @observer.disconnect()
+      @polling = false
 
   requestDocumentPoll: =>
     if @animationFrameRequest?