Debug flag not set in C++ code for the Browser process

```
In cefpython_app.cpp the g_debug variable is set only for the Render process in 
CefPythonApp::OnRenderThreadCreated(). This flag also needs to be set when 
CefPythonApp class is instantiated in the Browser process.
```

Original issue reported on code.google.com by `czarek.t...@gmail.com` on 18 Dec 2013 at 1:42
