Pass JavaRef to WebContents::FromJavaWebContents.

Pass JavaRef to WebContents::FromJavaWebContents.

Update WebContents::FromJavaWebContents to use JavaRef instead of bare
jobject. Various function parameter types are converted from jobject to
JavaRef to enable calls to obj() higher up the call chain to be removed.

Also, fix a few similar cases that just happen to be in the same files
as files already being modified, to avoid touching them again in a later
CL.

BUG=506850
Committed: https://crrev.com/b5fe8a62b9b232e9f003d28d9cacb77378b6d4e2
Cr-Commit-Position: refs/heads/master@{#417260}

[Torne, 2016-09-07 14:00:50]

torne@chromium.org changed reviewers:
+ jochen@chromium.org, tedchoc@chromium.org

[Torne, 2016-09-07 14:00:50]

OWNERS:
tedchoc: chrome
jochen: content

[jochen (gone - plz use gerrit), 2016-09-07 14:27:52]

lgtm

[Ted C, 2016-09-07 17:34:22]

lgtm

[Torne, 2016-09-08 10:33:54]

The CQ bit was checked by torne@chromium.org

[commit-bot: I haz the power, 2016-09-08 10:34:11]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-08 12:01:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-08 12:03:26]

Description was changed from

==========
Pass JavaRef to WebContents::FromJavaWebContents.

Update WebContents::FromJavaWebContents to use JavaRef instead of bare
jobject. Various function parameter types are converted from jobject to
JavaRef to enable calls to obj() higher up the call chain to be removed.

Also, fix a few similar cases that just happen to be in the same files
as files already being modified, to avoid touching them again in a later
CL.

BUG=506850
==========

to

==========
Pass JavaRef to WebContents::FromJavaWebContents.

Update WebContents::FromJavaWebContents to use JavaRef instead of bare
jobject. Various function parameter types are converted from jobject to
JavaRef to enable calls to obj() higher up the call chain to be removed.

Also, fix a few similar cases that just happen to be in the same files
as files already being modified, to avoid touching them again in a later
CL.

BUG=506850

Committed: https://crrev.com/b5fe8a62b9b232e9f003d28d9cacb77378b6d4e2
Cr-Commit-Position: refs/heads/master@{#417260}
==========

[commit-bot: I haz the power, 2016-09-08 12:03:27]

Patchset 1 (id:??) landed as
https://crrev.com/b5fe8a62b9b232e9f003d28d9cacb77378b6d4e2
Cr-Commit-Position: refs/heads/master@{#417260}