I get this warning hundreds of times while browsing but only in Chromium.
Thanks for your report. Is this just an informational warning for otherwise nominal operation? Googling for the message seems to suggest it can be ignored. How do you see the warning, do you run Chromium from command line?
I run Chromium from the command line in i3. Chromium has problems with crashing on javascript pages at the moment so any problems I see with it, I'll report. Whether this is related to that or not, I don't know.
For the iCCP: known incorrect sRGB profile warning look here: https://stackoverflow.com/questions/22745076/libpng-warning-iccp-known-incorrect-srgb-profile I think it has nothing to do with crash.