TextAutosizer should handle frames without a FrameView.

TextAutosizer should handle frames without a FrameView.

During cross-process navigation, it is possible to create a LocalFrame
that doesn't have a FrameView, since the latter gets created at the time
a document commits. Since the commit in this case happens later in time,
the current code crashes as it expects the view to be there.

BUG=357747
Committed: https://crrev.com/6bdf645df32dbfa0ff4ae4925468519800f74827
Cr-Commit-Position: refs/heads/master@{#351204}

[nasko, 2015-09-28 22:14:19]

nasko@chromium.org changed reviewers:
+ skobes@chromium.org

[nasko, 2015-09-28 22:14:20]

Hello skobes@,
Can you please review this CL for me?
Thanks in advance!
Nasko

[skobes, 2015-09-28 22:23:34]

lgtm

[nasko, 2015-09-28 22:27:46]

The CQ bit was checked by nasko@chromium.org

[commit-bot: I haz the power, 2015-09-28 22:30:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1374783005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1374783005/1

[commit-bot: I haz the power, 2015-09-28 23:45:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-28 23:46:00]

Patchset 1 (id:??) landed as
https://crrev.com/6bdf645df32dbfa0ff4ae4925468519800f74827
Cr-Commit-Position: refs/heads/master@{#351204}