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François Beaufort
Works at Google
Attended IUT Informatique - Fontainebleau, France
Lives in France
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In cases in which a network error occurs and that Chrome has a stale copy of the resource that is attempting to be loaded, a "Load Stale Local Copy" button is shown on the network error page in the last chromium build.

Source: https://codereview.chromium.org/207553008
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+Timur Gaskarov Edited it, Thanks!
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François Beaufort

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If like me, you enjoy understanding how work your Chrome device CPUs, you may want to take a look at the internal chrome://power page.

This page now features in the last Dev Update new graphs for each CPU:
- Frequency State Occupancy Percentage (cpufreq)
- Idle State Occupancy Percentage (cpuidle)

For info, cpufreq is a Linux driver that can change the clock speed of the CPU(s) on the fly in order to save battery power - the lower the clock speed is, the less power the CPU consumes.
In the other hand, cpuidle is a CPU power management infrastructure to manage idle CPUs in a clean and efficient manner.

And just for the fun of it, watch a 4K YouTube video and look at the graphs.

Source: https://codereview.chromium.org/197813006
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Cool, I assume this is ChromeOS only? Would be great to see which processes are consuming energy similar to Activity Monitor in OS X 10.9.
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François Beaufort

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Importing supervised users in Chrome OS is now supported as well¹ in the last Dev Update.

Go to the login screen, click on "Add user" and "Create a supervised user". Choose the manager for the supervised user and click on the "Import an existing supervised user" link to get the screen below.

¹ http://googlechromereleases.blogspot.fr/2014/04/stable-channel-update.html

Source: https://codereview.chromium.org/224343003 
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François Beaufort

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The last Chrome OS Dev Update now lets us uploading crashes whenever we want from the internal page _chrome://crashes_by clicking on the new "Start uploading crashes" link.

For info, the chrome://crashes page lists most recent crashes that have been already reported to Google with your consent.
This new action is very handy when you've just encountered a crash and don't want to wait for the crash uploader to do its job in an hour or so.

Source: https://codereview.chromium.org/26536002
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A Chrome API to control the lightbar of the Chromebook Pixel doesn't exist yet but that doesn't prevent me to write a Chrome App to create my custom lightbar sequences.

Obviously, I still need to be in Developer Mode¹ for now since this Chrome App basically generates the shell commands that I can either paste or run as a shell file to a Chrome OS Shell.

As usual, the source code is publicly available at https://code.google.com/p/lightbar/source/browse/.

The LightBar App is available now for those on Beta Channel on the Chrome Web Store at https://chrome.google.com/webstore/detail/lightbar/mapojmhlokibmailhcefcgdphleiailc

¹ http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/chromebook-pixel#TOC-Developer-Mode

Source: https://chromium-review.googlesource.com/183140
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/\ This
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Have him in circles
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Chrome Canary allows us to add and select a different Google Account for Cloud Print in the print preview.

Source: https://codereview.chromium.org/233623003
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So I don't know. D:
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The Chrome OS Audio Player volume can now be controlled with Arrow Keys in the last Dev Update when the volume control is visible. Give it a try, listen to some good music:

- Press <Up> to increase the volume of 1
- Press <Down> to decrease the volume of 1
- Press <Alt> + <Up> to increase the volume of 10
- Press <Alt> + <Down> to decrease the volume of 10

Source: https://codereview.chromium.org/219163003
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nice
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Are you a fan of the Australian scrolling¹ feature aka natural scrolling? If so, you may have already enabled it for your touchpad. The good news is that you can also enable the Australian scrolling for your mouse in the last Dev Update of Chrome OS.

There is no friendly UI for it now but here's how you can enable it:
- Open a Chrome OS Shell with <Ctrl> + <Alt> + T
- Type "inputcontrol -mouse_australian_scrolling 1"
Press <Enter>

Reverting this setting is as easy as running the same command with "0" instead of "1".

¹ https://support.google.com/chromebook/answer/2583287?hl=en

Source: https://chromium-review.googlesource.com/192183 
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Ugh I forgot I had gone back to stable.....
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If you've already set Chrome to auto-open files after downloading by clicking on the little arrow next to the download bar, a new button to reset these preferences has been added in the last Dev Update of Chrome OS.

It is simple: go to chrome://settings and look for "Clear auto-opening settings".

Source: https://codereview.chromium.org/222913003
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In order to measure efficiently the drag latency on touchpads, the Chrome OS team has handcrafted a USB device named Quickstep. 

The video below shows you it consists of a laser that lays across the touchpad and hits a phototransistor on the other side. Each time the laser is broken/unbroken by a finger in-between the sensor and the laser, the device reports it immediately over USB.

Learn more about Quickstep by reading the official documentation at https://docs.google.com/document/d/1B3GfZkwAfHlQE5kAuHcn-wq8I-7D5UF2Ap7C_CYk5co/edit 

Source: https://chromium-review.googlesource.com/192646
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People
Have him in circles
22,846 people
Work
Occupation
Dive into Chromium source code
Employment
  • Google
    Chromium Evangelist, 2013 - present
  • Trapeze Media
    Python Web Application Developer, 2010 - 2012
  • Conversition Strategies Inc.
    Sentiment Engine Designer, 2010 - 2010
  • SNCF - French National Railway Company
    Programmer Analyst, 2005 - 2009
  • PiTrust Association
    Vice President, 2005 - 2007
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
France
Previously
Champagne sur Seine, France (2002-2005) - Fontainebleau, France (2006-2009) - Toronto, Canada - Seoul, South Korea
Story
Tagline
Happiness Evangelist
Bragging rights
She still loves me!
Education
  • IUT Informatique - Fontainebleau, France
    2002 - 2005
  • Lycée "La Tour des Dames" - Rozay-en-Brie, France
    1998 - 2001
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Gender
Male
Birthday
July 29, 1983