Offer functions to setup and find chrome about crrri HOT 8 CLOSED

I second that idea.

Would be nice to have an error message here suggesting to launch find_chrome():

> chrome <- Chrome$new() 
Running  --no-first-run --headless \
  '--user-data-dir=/Users/colin/Library/Application Support/r-crrri/chrome-data-dir-zlfusejq' \
  '--remote-debugging-port=9222'
Error: Cannot launch Chrome. Please check your system configuration.

I feel like Please check your system configuration. is a little bit cryptic, when what the function needs is the path to the chrome bin, so something like:

Error: Cannot launch Chrome. Please add the path to your Chrome bin, you can trry and find it with `find_chrome()`.

Depending on pagedown() for that only function seems a little bit too much though.

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We still are missing a download_chromium like in decapitated:
https://github.com/hrbrmstr/decapitated/blob/master/R/download-chromium.R

@hrbrmstr you suggested a fix version in decapitated from googleapi.
I found later this website (https://chromium.woolyss.com/#notes) where there are several portable versions that where useful for me on windows. what do you think of this source ?
We could either document the installation there or update you download_chromium function.

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@ColinFay Thanks for the suggestion!

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@RLesur do you think we can borrow the find_chrome function ? or should we rewrote it our way ?
It seems useful and that configuring is not enough for users.

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pagedown license is MIT. There is no problem in reusing the source with appropriate credits.
The only point is that we should use a different function name to avoid conflicts.

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This confirms what thought. 👍
name idea:

• chrome_find ? 😄
• find_chrome_binary ?
• guess_chrome_path ?

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+1 for find_chrome_binary()

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@ColinFay there is now a find_chrome_binary() function that will guess like that the one in pagedown but also use HEADLESS_CHROME env var if set.

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