/usr/share/applications/camera-app.desktop is in camera-app 2.9.1+14.04.20140331-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [Desktop Entry]
Type=Application
Name=Camera
GenericName=camera-app
Comment=Camera application
Exec=camera-app %u
Terminal=false
Icon=camera-app
X-Ubuntu-Touch=true
X-Ubuntu-Gettext-Domain=camera-app
X-Ubuntu-Single-Instance=true
|