Hello,
the last two messages are from a File System Field that has isolated suspicious files. If this would repeat and you would like to completely remove Chrome and install it from the fresh, here are the terminal commands:

sudo rm -rf /Applications/Google\ Chrome.app
sudo rm -rf /Library/Google/Google*
sudo rm -rf /Library/Application\ Support/Google/RLZ
sudo rm -rf /Library/Application\ Support/Google/Chrome
rm -rf ~/Library/Google/Google*
rm -rf ~/Library/Application\ Support/Google/RLZ
rm -rf ~/Library/Application\ Support/Google/Chrome

Martin