Move inpage-provider and port-stream outside

With the creation of the [metamask-extension-provider](https://github.com/MetaMask/metamask-extension-provider) we have our first non-core module that is dependent on the inpage-provider and port-stream.

To reduce the size of its dependencies, I have moved the
[metamask-inpage-provider](https://github.com/MetaMask/metamask-inpage-provider) into its own module, as well as [extension-port-stream](https://github.com/MetaMask/extension-port-stream).

This allows them to be more easily depended & iterated on by external
projects.

1 files changed, 1 insertions, 1 deletions

diff --git a/app/scripts/background.js b/app/scripts/background.js
index c7395c810..d4d87e0d5 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -15,7 +15,7 @@ const asStream = require('obs-store/lib/asStream')
 const ExtensionPlatform = require('./platforms/extension')
 const Migrator = require('./lib/migrator/')
 const migrations = require('./migrations/')
-const PortStream = require('./lib/port-stream.js')
+const PortStream = require('extension-port-stream')
 const createStreamSink = require('./lib/createStreamSink')
 const NotificationManager = require('./lib/notification-manager.js')
 const MetamaskController = require('./metamask-controller')