Close app list when Windows theme changes.

This is necessary as the view needs to be created if the DWM composition
mode changes. Otherwise ugly black borders appear and don't go away
whenever the DWM composition changes.

BUG=334141

Review URL: https://codereview.chromium.org/139313006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245880 0039d316-1c4b-4281-b951-d872f2087c98
Quota: Clean up QuotaDatabase


BUG=n/a
TEST=content_unittests

Review URL: https://codereview.chromium.org/141663003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245881 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245881
Removes MessageLoop::Type checks in favor of IsCurrent on MessageLoops.

This is part of removing the MessageLoop::Type enum.

BUG=none
TEST=none
R=darin@chromium.org

Review URL: https://codereview.chromium.org/141683005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245882 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245882