Revert "Change the history state throttle interval from 60 to 120 Hz."

This reverts commit 8e4127dd506c501cd3f51d91dc22a3dfa8f5f1ca.

Reason for revert: Part 1 of trying to revert the history throttling changes, to see if https://bugs.chromium.org/p/chromium/issues/detail?id=870861 improves.

Original change's description:
> Change the history state throttle interval from 60 to 120 Hz.
> 
> This is a bit more lenient and may enable some callers, including a flaky test,
> to get (more of) what they need. The test's root problem seems to be data races
> (see issue 847326), however.
> 
> Bug: 870861
> Change-Id: I249e9f06fa9a9a9f3b74e53cf2ef3f34b0c2371c
> Reviewed-on: https://chromium-review.googlesource.com/1171825
> Reviewed-by: Daniel Cheng <dcheng@chromium.org>
> Commit-Queue: Chris Palmer <palmer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#582415}

TBR=palmer@chromium.org,dcheng@chromium.org,kinuko@chromium.org

Change-Id: I9fb7b5b0f8ebff8b6d6c5a772745cfd2c10ef51a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 870861
Reviewed-on: https://chromium-review.googlesource.com/1171708
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582432}
1 file changed