Avoid using app API in renderer process for #907

atom/common/api/lib/screen.coffee

@@ -1,6 +1,17 @@
+binding = process.atomBinding 'screen'
+
+checkAppIsReady = ->
+  unless process.type is 'renderer' or require('app').isReady()
+    throw new Error('Can not use screen module before the "ready" event of app module gets emitted')
+
 module.exports =
   if process.platform in ['linux', 'win32'] and process.type is 'renderer'
     # On Linux we could not access screen in renderer process.
     require('remote').require 'screen'
   else
-    process.atomBinding 'screen'
+    getCursorScreenPoint: ->
+      checkAppIsReady()
+      binding.getCursorScreenPoint()
+    getPrimaryDisplay: ->
+      checkAppIsReady()
+      binding.getPrimaryDisplay()