No, the QuickTime plugin is not available by default in Chrome installations. You will have to manually add it through the Quicktime's automatic installation. To do this, simply download QuickTime from the official website, then close all the browsers and proceed with the installation.
After installation, go to Chrome and type
chrome://plugins. Scroll down until you see it and tick the Enable button in case it's disabled and that's it. Next time you visit a website that requires QuickTime, you will be notified to accept its playback or not.
Download QuickTime: https://www.apple.com/quicktime/download