(Reland) Discard compositor frames from unloaded web content

(Reland) Discard compositor frames from unloaded web content

This is a reland of https://codereview.chromium.org/2707243005/ with a
small change to fix an uninitialized memory error that fails on MSAN
bots.

BUG=672847, 648117
TBR=danakj@chromium.org, creis@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2731283003
Cr-Commit-Position: refs/heads/master@{#454954}
(cherry picked from commit 5d78b84d39bd34bc9fce9d01c0dcd5a22a330d34)

Review-Url: https://codereview.chromium.org/2793013002 .
Cr-Commit-Position: refs/branch-heads/3029@{#547}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/5aa9a4a70f65068dcc5d8b84ca42cb05fb380728

[kenrb, 2017-04-03 15:21:31]

Description was changed from

==========
(Reland) Discard compositor frames from unloaded web content

This is a reland of https://codereview.chromium.org/2707243005/ with a
small change to fix an uninitialized memory error that fails on MSAN
bots.

BUG=672847,648117
TBR=danakj@chromium.org, creis@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2731283003
Cr-Commit-Position: refs/heads/master@{#454954}
(cherry picked from commit 5d78b84d39bd34bc9fce9d01c0dcd5a22a330d34)
==========

to

==========
(Reland) Discard compositor frames from unloaded web content

This is a reland of https://codereview.chromium.org/2707243005/ with a
small change to fix an uninitialized memory error that fails on MSAN
bots.

BUG=672847,648117
TBR=danakj@chromium.org, creis@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2731283003
Cr-Commit-Position: refs/heads/master@{#454954}
(cherry picked from commit 5d78b84d39bd34bc9fce9d01c0dcd5a22a330d34)

Review-Url: https://codereview.chromium.org/2793013002 .
Cr-Commit-Position: refs/branch-heads/3029@{#547}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/5aa9a4a70f65068dcc5d8b84ca42...
==========

[kenrb, 2017-04-03 15:21:33]

Committed patchset #1 (id:1) manually as
5aa9a4a70f65068dcc5d8b84ca42cb05fb380728.

[danakj, 2017-04-03 15:35:01]

> This is a reland of https://codereview.chromium.org/2707243005/ with a
> small change to fix an uninitialized memory error that fails on MSAN
> bots.

It's nice if you're going to do this through a separate CL to upload the first
version, then the changes as another patchset. As is, I can easily provide no
review feedback really.

[kenrb, 2017-04-03 15:55:00]

On 2017/04/03 15:35:01, danakj wrote:
> > This is a reland of https://codereview.chromium.org/2707243005/ with a
> > small change to fix an uninitialized memory error that fails on MSAN
> > bots.
> 
> It's nice if you're going to do this through a separate CL to upload the first
> version, then the changes as another patchset. As is, I can easily provide no
> review feedback really.

I did that on the reland CL which I on which you were originally TBR'd:
https://codereview.chromium.org/2731283003.

This is just the branch merge, which in retrospect should have had an edited
description to avoid creating confusion. Sorry about that!

[danakj, 2017-04-03 15:57:10]

Oh! Sorry my bad