[Android WebView] Put error page files into WebView resources

[Android WebView] Put error page files into WebView resources

Historically, the load error pages displayed by WebView were a part of
Android framework resources. This change adds them into WebView
resources. This way, the pages will be accessible to sandboxed child
services, using Chromium's resource sharing mechanisms.

Unlike Chrome's error pages, which use WebUI, WebView pages are
completely static, as JavaScript can be disabled.

BUG=515691
Committed: https://crrev.com/f082f6cb6e1c2b57554bb9b91b6dbd7214027c4f
Cr-Commit-Position: refs/heads/master@{#341951}

[mnaganov (inactive), 2015-08-03 16:25:31]

mnaganov@chromium.org changed reviewers:
+ torne@chromium.org

[mnaganov (inactive), 2015-08-04 17:33:09]

Ping!

[Torne, 2015-08-05 12:14:16]

lgtm

[mnaganov (inactive), 2015-08-05 15:37:38]

The CQ bit was checked by mnaganov@chromium.org

[commit-bot: I haz the power, 2015-08-05 15:38:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1270793002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1270793002/20001

[commit-bot: I haz the power, 2015-08-05 17:20:37]

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

[commit-bot: I haz the power, 2015-08-05 17:20:37]

Try jobs failed on following builders:
  linux_android_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_android_r...)

[mnaganov (inactive), 2015-08-05 17:21:27]

The CQ bit was checked by mnaganov@chromium.org

[commit-bot: I haz the power, 2015-08-05 17:21:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1270793002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1270793002/20001

[commit-bot: I haz the power, 2015-08-05 20:10:00]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-08-05 20:10:40]

Patchset 2 (id:??) landed as
https://crrev.com/f082f6cb6e1c2b57554bb9b91b6dbd7214027c4f
Cr-Commit-Position: refs/heads/master@{#341951}