Remove IdleNotification call in the main thread of foreground tab.

Remove IdleNotification call in the main thread of foreground tab.

V8 posts idle tasks explicitly.

BUG=chromium:490559
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=201977

[ulan, 2015-09-09 10:44:19]

ulan@chromium.org changed reviewers:
+ rmcilroy@chromium.org

[ulan, 2015-09-09 10:44:20]

Hi Ross, ptal.

I will remove IdleNotification in WorkerThread in a separate CL to make triaging
potential regressions easier.

[rmcilroy, 2015-09-09 11:40:59]

On 2015/09/09 10:44:20, ulan wrote:
> Hi Ross, ptal.

lgtm, thanks.

> I will remove IdleNotification in WorkerThread in a separate CL to make
triaging
> potential regressions easier.

That's great, thanks!

[haraken, 2015-09-09 11:42:36]

LGTM

[ulan, 2015-09-09 11:43:33]

The CQ bit was checked by ulan@chromium.org

[commit-bot: I haz the power, 2015-09-09 11:43:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1320073005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1320073005/1

[commit-bot: I haz the power, 2015-09-09 13:23:03]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=201977

[ulan, 2015-09-11 09:24:56]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1336923003/ by ulan@chromium.org.

The reason for reverting is: Reverting because of regression  in
v8.top_25_smooth benchmark (crbug.com/530391).