Render inband text tracks in the media pipeline

This change modifies the FFmpeg demuxer to recognize text
streams embedded in the source media (Webm).  Text decoder
and text renderer filters have been added to the pipeline,
to process the text frames as they are pulled downstream.

BUG=230708

Review URL: https://codereview.chromium.org/23702007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236660 0039d316-1c4b-4281-b951-d872f2087c98
Don't autofill passwords or forms in iframed content.

BUG=257156

Review URL: https://codereview.chromium.org/73443002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236661 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236661
Updated usrsctp in DEPS.
Enable SCTP on Android.

BUG=
TESTED=Yes, by hand.
RISK=P1

Review URL: https://codereview.chromium.org/75733004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236662 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236663 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236663
[sql] Rearrange TopSites database code in prep for recovery code.

Deprecate version 1.  Pull schema creation to a place where the
(anonymous namespace) recovery code can see it.  Also pull
Get/SetRedirects() to anon namespace, as they were private anyhow.

BUG=321852

Review URL: https://codereview.chromium.org/77733012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236664 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236664