Chrome Version       : 58.0.3029.96
OS Version: OS X 10.12.4
URLs (if applicable) : n/a
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5:
  Firefox 4.x:
     IE 7/8/9:

What steps will reproduce the problem?
1. Have poor WiFi connection or otherwise be working in an environment where Chrome is using a lot of memory. I last experienced this on gogoinflight WiFi.
2. Type text in any Chrome web page window. For example, typing a Gmail message. Particularly on poor connections, there tends to be significant lag between my typing into a Gmail message and when the text actually appears (measured in minutes, not seconds).
3. While waiting for the text to appear, I may click into a different web page, Google Hangout window Chrome extension window, etc. The text that I originally typed in the Gmail message that hasn't yet appeared will begin replicating to the new location that has focus (it could be another web page window, Hangouts chat, Chrome OneSearch bar, etc.).
4. Once the lag is resolved, the text I intended to appear in just my Gmail message will now appear, in full, in the Gmail window and partially appear wherever I gave Chrome focus while waiting for the lag to resolve (depending on at what point the new window gained focus).

What is the expected result?
Ideally, no lag at all.
Even with lag, the text I type in one location or window should not appear in two places. If not caught, the user could end up unknowing disclosing information.

What happens instead of that?
Text appears in the Gmail window (where I expected) AND anywhere else I click. It does not appear to be the case that losing focus causes the message to stop appearing in the Gmail window but instead has the text written twice.

I do want to emphasize that I used Gmail in this example, but it's not limited to Gmail. This happens every time Chrome freezes, whether it's browsing the web, using Docs, etc.

Please provide any additional information below. Attach a screenshot if
possible.

UserAgentString: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.96 Safari/537.36