Ignore View visibility for WebView's page visibility API.

Ignore View visibility for WebView's page visibility API.

Some apps will still try to draw on an invisible WebView, like taking
snapshot into a bitmap etc. In order not to break these apps, WebView
will ignore view visibility for blink page visibility API.

So now, if an app wants to toggle blink page visibility, it has to call
WebView#onPause/onResume. The visibility of the window that the WebView
is attached to is not under control of the app.

BUG=561706
Committed: https://crrev.com/b31ed632eb9740847de0e2ab3489f7c4b0d96e54
Cr-Commit-Position: refs/heads/master@{#361802}

[hush (inactive), 2015-11-25 21:57:15]

hush@chromium.org changed reviewers:
+ sgurun@chromium.org

[hush (inactive), 2015-11-25 21:57:15]

Hi Selim,
PTAL

[sgurun-gerrit only, 2015-11-25 23:01:12]

lgtm

[sgurun-gerrit only, 2015-11-25 23:01:35]

On 2015/11/25 23:01:12, sgurun wrote:
> lgtm

don't forget to write a test in a subsequent cl

[hush (inactive), 2015-11-25 23:17:34]

The CQ bit was checked by hush@chromium.org

[commit-bot: I haz the power, 2015-11-25 23:21:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1475843004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1475843004/1

[commit-bot: I haz the power, 2015-11-26 01:31:14]

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

[commit-bot: I haz the power, 2015-11-26 01:31:15]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_TIMED_OUT, no build
URL)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_TIMED_OUT, no build URL)

[hush (inactive), 2015-11-26 01:34:29]

The CQ bit was checked by hush@chromium.org

[commit-bot: I haz the power, 2015-11-26 01:35:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1475843004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1475843004/1

[commit-bot: I haz the power, 2015-11-26 02:40:50]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-26 02:41:36]

Description was changed from

==========
Ignore View visibility for WebView's page visibility API.

Some apps will still try to draw on an invisible WebView, like taking
snapshot into a bitmap etc. In order not to break these apps, WebView
will ignore view visibility for blink page visibility API.

So now, if an app wants to toggle blink page visibility, it has to call
WebView#onPause/onResume. The visibility of the window that the WebView
is attached to is not under control of the app.

BUG=561706
==========

to

==========
Ignore View visibility for WebView's page visibility API.

Some apps will still try to draw on an invisible WebView, like taking
snapshot into a bitmap etc. In order not to break these apps, WebView
will ignore view visibility for blink page visibility API.

So now, if an app wants to toggle blink page visibility, it has to call
WebView#onPause/onResume. The visibility of the window that the WebView
is attached to is not under control of the app.

BUG=561706

Committed: https://crrev.com/b31ed632eb9740847de0e2ab3489f7c4b0d96e54
Cr-Commit-Position: refs/heads/master@{#361802}
==========

[commit-bot: I haz the power, 2015-11-26 02:41:36]

Patchset 1 (id:??) landed as
https://crrev.com/b31ed632eb9740847de0e2ab3489f7c4b0d96e54
Cr-Commit-Position: refs/heads/master@{#361802}