- Electron version: 1.2.0
- Operating system: Mac OS X - 10.11.5

I upgraded from 1.1.1 to 1.2.0. 1.2.0 breaks on the following `index.html`:

``` html
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <script>
            console.log(process.env.NODE_ENV)
        </script>
    </head>
    <body>
        <div id="app-container"></div>
    </body>
</html>
```

Error:

```
Uncaught ReferenceError: process is not defined
```

atom/renderer/atom_renderer_client.h
#ifndef ATOM_RENDERER_ATOM_RENDERER_CLIENT_H_
#define ATOM_RENDERER_ATOM_RENDERER_CLIENT_H_
#include <string>
#include <vector>
#include "content/public/renderer/content_renderer_client.h"
namespace atom {
class AtomBindings;