Reland "[Tab Groups] Implement time to switch histogram."

This reverts commit f5a4e592262eebc673dbaac0de0d4f1747567638.

Reason for revert: Relanding with memory issues addressed

Original change's description:
> Revert "[Tab Groups] Implement time to switch histogram."
> 
> This reverts commit 19b7b0191aad476591eb717ec148686757f87dfa.
> 
> Reason for revert: Likely causing failures for TabHoverCardBubbleViewBrowserTest.WidgetNotVisibleOnClick 
> TabHoverCardBubbleViewBrowserTest.WidgetNotVisibleOnMousePressAfterTabFocus on Linux MSan
> 
> Bug:1047172
> 
> Original change's description:
> > [Tab Groups] Implement time to switch histogram.
> > 
> > Records the amount of time in ms from the cursor entering the tabstrip
> > to tapping on a tab to switch.
> > 
> > Bug: 1040657
> > Change-Id: I438f53c3d3a83cead9a3feb0c62356e1322cf1c6
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2023396
> > Reviewed-by: Jesse Doherty <jwd@chromium.org>
> > Reviewed-by: Connie Wan <connily@chromium.org>
> > Commit-Queue: Charlene Yan <cyan@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#736721}
> 
> TBR=jwd@chromium.org,cyan@chromium.org,connily@chromium.org
> 
> Change-Id: Iff213feb375e247f59ce79c72616abaf164a35d1
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: 1040657
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2030664
> Reviewed-by: Ioana Pandele <ioanap@chromium.org>
> Commit-Queue: Ioana Pandele <ioanap@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#736842}

TBR=jwd@chromium.org,ioanap@chromium.org,cyan@chromium.org,connily@chromium.org

Change-Id: I6ebcffc8f0b0307ce0a3ff5598fab64a870af43b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1047172, 1040657
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2031562
Reviewed-by: Charlene Yan <cyan@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Commit-Queue: Charlene Yan <cyan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#737027}
2 files changed