The chromium team is currently working on improving the Chrome App windows bounds API.
First patch that landed in the last chromium build provides two new properties: the inner bounds (position, size and constraints of the window's content, which does not include window decorations) and the outer bounds (position, size and constraints of the window, which includes window decorations, such as the title bar and frame).
The Yama¹ Linux Security Module, introduced back in Linux 3.4, collects a number of system-wide discretionary access control security protections (such as ptrace restrictions) that are not handled by the core kernel itself:
One particularly troubling weakness of the Linux process interfaces is that a single user is able to examine the memory and running state of any of their processes. For example, if one application (e.g. Pidgin) was compromised, it would be possible for an attacker to attach to other running processes (e.g. Firefox, SSH sessions, GPG agent, etc) to extract additional credentials and continue to expand the scope of their attack without resorting to user-assisted phishing.
The good news is that the last chromium build shows you whether Yama LSM is enforced or not in the internal chrome://sandbox page.
Chrome OS users already know about the impressive chrome://system internal page which lists all kind of information related to their operating system.
A subset of it is also now available for Chrome Desktop in Dev Channel. As you can read below, it gathers the chrome version, some data about chrome sync, the extensions running and some memory info. For information, these logs will be sent with your approval when you report an issue and check the "Send system information" checkbox.
People who have multiple profiles or users on their Chrome devices can now take advantage of the new experimental multiprofiles feature. This mode gives you the ability to run Chrome OS with multiples profiles at the same time.
Once you've enabled the chrome://flags/#enable-multi-profiles flag in Dev Channel, you can start to run multiple profiles in your signed-in session by clicking on your profile picture in the system tray popup, selecting "Sign in another account", and choosing from the list of profiles you had previously added on your device.
Switching profiles is as easy as clicking on the profile picture in the system tray popup. Although I have to say that my favorite way is to use the handy <Ctrl> + <Alt> + <Period> and <Ctrl> + <Alt> + <Comma> keyboard shortcuts. One nice thing, but still highly experimental, is that you can move windows to different profiles with a simple right click in the window top bar. As you can see in the video below, even the Files App even supports this feature.