How to remove Background Page in Chrome

Problem

Google Chrome can slow down when it starts to occupy a lot of memory. By opening Settings -> More Tools -> Task Manager, I saw that a Background Page: Google Drive process was occupying 290 MB of memory. What is this process and how to remove it?

Solution

This is used by Google Drive when offline sync is enabled. To remove this, go to Google Drive -> Settings and disable Offline Sync. Chrome will immediately kill this process as soon as it is disabled. No need to restart Chrome.

Tried with: Chrome 43.0.2357.124 (64-bit) and Ubuntu 14.04