Fix loadUrl for javascript urls.

Fix loadUrl for javascript urls.

A recent update
https://codereview.chromium.org/1022993002
broke the loading of javascript URLs. This patch reverts only the part
of the update which is broken.

BUG=489259
Committed: https://crrev.com/1649ce638403abeb04c03d219221af7dc2817e57
Cr-Commit-Position: refs/heads/master@{#330507}

[gsennton, 2015-05-19 10:48:13]

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

[gsennton, 2015-05-19 10:52:53]

The CQ bit was checked by gsennton@chromium.org

[commit-bot: I haz the power, 2015-05-19 10:53:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1131083004/1

[commit-bot: I haz the power, 2015-05-19 10:53:15]

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

[commit-bot: I haz the power, 2015-05-19 10:53:16]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Torne, 2015-05-19 11:20:35]

lgtm

[Torne, 2015-05-19 11:20:39]

The CQ bit was checked by torne@chromium.org

[commit-bot: I haz the power, 2015-05-19 11:20:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1131083004/1

[commit-bot: I haz the power, 2015-05-19 11:54:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 11:56:12]

Patchset 1 (id:??) landed as
https://crrev.com/1649ce638403abeb04c03d219221af7dc2817e57
Cr-Commit-Position: refs/heads/master@{#330507}