MD Downloads: improve early loading shim

MD Downloads: improve early loading shim

Copy some colors, actually simulate the toolbar.
Generally make things super fast.

R=esprehn@chromium.org
BUG=none
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2803653003
Cr-Commit-Position: refs/heads/master@{#462710}
Committed: https://chromium.googlesource.com/chromium/src/+/c27e1094ac8d13391b7e6783bab1f1b49223a7e2

[Dan Beam, 2017-04-06 03:21:24]

Description was changed from

==========
MD Downloads: improve early loading shim

Copy some colors, actually simulate the toolbar.
Generally make things super fast.

R=esprehn@chromium.org
BUG=none
==========

to

==========
MD Downloads: improve early loading shim

Copy some colors, actually simulate the toolbar.
Generally make things super fast.

R=esprehn@chromium.org
BUG=none
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========

[Dan Beam, 2017-04-06 03:34:05]

Patchset #1 (id:1) has been deleted

[Dan Beam, 2017-04-06 03:34:12]

The CQ bit was checked by dbeam@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-06 03:34:31]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[esprehn, 2017-04-06 03:46:47]

Avoid attribute selectors whenever possible, they're largely a footgun and slow.

https://codereview.chromium.org/2803653003/diff/20001/chrome/browser/resource...
File chrome/browser/resources/md_downloads/downloads.html (right):

https://codereview.chromium.org/2803653003/diff/20001/chrome/browser/resource...
chrome/browser/resources/md_downloads/downloads.html:14: html[loading] {
.loading, remove the attribute selector. This makes changing the attribute
"loading" in every element cause a style recalc.

[Dan Beam, 2017-04-06 04:05:44]

attrs->classes

[Dan Beam, 2017-04-06 04:10:37]

The CQ bit was checked by dbeam@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-06 04:10:56]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-06 05:06:30]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-04-06 05:06:31]

Dry run: This issue passed the CQ dry run.

[esprehn, 2017-04-07 00:03:54]

lgtm

[Dan Beam, 2017-04-07 00:06:02]

The CQ bit was checked by dbeam@chromium.org

[commit-bot: I haz the power, 2017-04-07 00:06:41]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-07 00:35:04]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1491523562740780,
"parent_rev": "fdea7754edeede6bb90f8f41183bb806c944c727", "commit_rev":
"c27e1094ac8d13391b7e6783bab1f1b49223a7e2"}

[commit-bot: I haz the power, 2017-04-07 00:36:36]

Description was changed from

==========
MD Downloads: improve early loading shim

Copy some colors, actually simulate the toolbar.
Generally make things super fast.

R=esprehn@chromium.org
BUG=none
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========

to

==========
MD Downloads: improve early loading shim

Copy some colors, actually simulate the toolbar.
Generally make things super fast.

R=esprehn@chromium.org
BUG=none
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2803653003
Cr-Commit-Position: refs/heads/master@{#462710}
Committed:
https://chromium.googlesource.com/chromium/src/+/c27e1094ac8d13391b7e6783bab1...
==========

[commit-bot: I haz the power, 2017-04-07 00:36:37]

Committed patchset #2 (id:40001) as
https://chromium.googlesource.com/chromium/src/+/c27e1094ac8d13391b7e6783bab1...