<webview>: Add JavaScript test for IndexedDB isolation.

<webview>: Add JavaScript test for IndexedDB isolation.
Remove the old and disabled test.

Previously we used to run the test partly in cpp and partly in JS.
This CL changes the test code to run entirely in JS, requiring less
context switches (== faster) and improving readability.

BUG=248500, 160361
Test=None, no visible changes.

Committed: https://crrev.com/c4ae3ecb1e6d47a891123d44229f4ee5f9a834ac
Cr-Commit-Position: refs/heads/master@{#329863}

[lazyboy, 2015-05-13 20:41:16]

lazyboy@chromium.org changed reviewers:
+ hanxi@chromium.org

[lazyboy, 2015-05-13 20:41:17]

+Xi for review.

[Xi Han, 2015-05-14 15:35:02]

The CQ bit was checked by hanxi@chromium.org

[Xi Han, 2015-05-14 15:35:03]

lgtm

https://chromiumcodereview.appspot.com/1144473003/diff/40001/chrome/test/data...
File
chrome/test/data/extensions/platform_apps/web_view/isolation_indexeddb/main.js
(right):

https://chromiumcodereview.appspot.com/1144473003/diff/40001/chrome/test/data...
chrome/test/data/extensions/platform_apps/web_view/isolation_indexeddb/main.js:25:
Guest.prototype.runIDBSteps = function(
nit: add comment of this function.

[commit-bot: I haz the power, 2015-05-14 15:36:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1144473003/40001

[lazyboy, 2015-05-14 15:37:57]

The CQ bit was unchecked by lazyboy@chromium.org

[lazyboy, 2015-05-14 15:50:09]

https://chromiumcodereview.appspot.com/1144473003/diff/40001/chrome/test/data...
File
chrome/test/data/extensions/platform_apps/web_view/isolation_indexeddb/main.js
(right):

https://chromiumcodereview.appspot.com/1144473003/diff/40001/chrome/test/data...
chrome/test/data/extensions/platform_apps/web_view/isolation_indexeddb/main.js:25:
Guest.prototype.runIDBSteps = function(
On 2015/05/14 15:35:03, Xi Han wrote:
> nit: add comment of this function.

Done.

[lazyboy, 2015-05-14 17:05:52]

The CQ bit was checked by lazyboy@chromium.org

[lazyboy, 2015-05-14 17:05:52]

The patchset sent to the CQ was uploaded after l-g-t-m from hanxi@chromium.org
Link to the patchset: https://chromiumcodereview.appspot.com/1144473003/#ps80001
(title: "comments")

[commit-bot: I haz the power, 2015-05-14 17:06:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1144473003/80001

[commit-bot: I haz the power, 2015-05-14 17:11:42]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2015-05-14 17:12:36]

Patchset 5 (id:??) landed as
https://crrev.com/c4ae3ecb1e6d47a891123d44229f4ee5f9a834ac
Cr-Commit-Position: refs/heads/master@{#329863}