Browser-laptop: Refine Time Spent Calculation

[jonathansampson]

• Did you search for similar issues before submitting this one?
  Yes

• Describe the issue you encountered:
  _Time Spent_ is presently too lenient. One site, left open when I walked away from my machine for the evening, was granted a _Time Spent_ amount of over 10 hours. Other users report similarly skewed reports for domains in their list. See https://twitter.com/givanse/status/837495337455501313.

• Platform (Win7, 8, 10? macOS? Linux distro?):
  Desktop

• Brave Version (revision SHA):
  0.13.x

• Steps to reproduce: (_Unconfirmed_)

  1. Open multiple tabs for a single domain
  2. Leave browser open, and leave computer

• Actual result:
  Brave would factor in some length of inactivity when calculated _Time Spent_ on a particular page.

• Expected result:
  Brave appears to focus more on how long the page was open, rather than how long the user was interacting with the page.

• Will the steps above reproduce in a fresh profile? If not what other info can be added?
  N/A

• Is this an issue in the currently released version?
  Yes

• Can this issue be consistently reproduced?
  Yes

[cndouglas]

0.13.5 has already shipped. 😄 Moving to 0.13.6.

[jonathansampson]

@Liunkae Haha. My mistake. Thank you for correcting.

[mrose17]

appears to be a duplicate of https://github.com/brave/browser-laptop/issues/6826