Roll ANGLE deps, with new commit id versioning.

Instead of tracking ANGLE revisions manually, we've switched to
automatically embedding a commit id header. The ANGLE roll means
we need to update Chrome to the new version tracking.

BUG=343676

Review URL: https://codereview.chromium.org/164913002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251862 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251862
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251863 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251863