Support for suppressing auto-login on cros.

BUG=294183
TEST=manual

Review URL: https://chromiumcodereview.appspot.com/24149004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224916 0039d316-1c4b-4281-b951-d872f2087c98
Endure measurement: refactoring and renaming

BUG=

Review URL: https://chromiumcodereview.appspot.com/24195016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224917 0039d316-1c4b-4281-b951-d872f2087c98
Adds NULL check for popup right after Init().

Crash data indicates digital persona may trigger pumping messages,
such as activation changes, during construction of the popup. This
then results in destroying the popup during Init() and is the result
of why popup_->GetNativeView() was subsequently crashing. Add NULL
check to not crash.

BUG=275794
TEST=none
R=pkasting@chromium.org

Review URL: https://chromiumcodereview.appspot.com/24210012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224918 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 224917
SVN changes up to revision 224918