Persist browseraction properties across restarts
Persist browser action properties across restarts even if other properties are modified before the old ones are loaded. (Note: only properties which are NOT modified are persisted.)
BUG=348775

Review URL: https://codereview.chromium.org/186013003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255588 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 255588
Remove deprecated media switches.

These switches are no longer necessary, having shipped for multiple
stable version of Chrome now.

BUG=343976
TEST=compile.

Review URL: https://codereview.chromium.org/189123003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255589 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 255589