Chrome Version       : 49.0.2623.87
OS Version: OS X 10.11.3
URLs (if applicable) :
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. Start with Dev Tools closed, or DevTools open but focus on the website
2. (Mac) hit SHIFT + CMD + M to trigger device mode
3. The command fires Chrome's "people" switcher instead

What is the expected result?

The device mode shortcut should be universal

What happens instead of that?

The command only works when DevTools is open AND has focus, which is 1/3 of scenarios I activate device mode. I would much rather use a single shortcut to trigger this than dancing from OPTION + CMD + I to SHIFT + CMD + M to start doing responsive stuff.

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

UserAgentString: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36