Save BlobStore only in the first window

src/browser/atom-application.coffee

@@ -212,6 +212,7 @@ class AtomApplication
     @openPathOnEvent('application:open-license', path.join(process.resourcesPath, 'LICENSE.md'))
 
     app.on 'before-quit', =>
+      @saveBlobStore()
       @saveState(false)
       @quitting = true
 
@@ -433,6 +434,9 @@ class AtomApplication
         console.log("Killing process #{pid} failed: #{error.code ? error.message}")
     delete @pidsToOpenWindows[pid]
 
+  saveBlobStore: ->
+    @windows[0]?.saveBlobStore()
+
   saveState: (allowEmpty=false) ->
     return if @quitting
     states = []

src/browser/atom-window.coffee

@@ -75,6 +75,9 @@ class AtomWindow
     hasPathToOpen = not (locationsToOpen.length is 1 and not locationsToOpen[0].pathToOpen?)
     @openLocations(locationsToOpen) if hasPathToOpen and not @isSpecWindow()
 
+  saveBlobStore: ->
+    @browserWindow.webContents?.send('save-blob-store')
+
   setLoadSettings: (loadSettingsObj) ->
     # Ignore the windowState when passing loadSettings via URL, since it could
     # be quite large.

static/index.js

@@ -1,15 +1,15 @@
 (function () {
-  var app = require('remote').require('app')
   var fs = require('fs-plus')
   var path = require('path')
   var FileSystemBlobStore = require('../src/file-system-blob-store')
   var NativeCompileCache = require('../src/native-compile-cache')
+  var ipc = require('ipc')
 
   var loadSettings = null
   var loadSettingsError = null
   var blobStore = null
 
-  app.on('before-quit', function () {
+  ipc.on('save-blob-store', function () {
     if (blobStore) {
       blobStore.save()
     }