Fix infinite recursion in Android accessibility.

Bug introduced by r232429.

BUG=314812,314376

Review URL: https://codereview.chromium.org/63873002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233833 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233833
Enable to resize the widget based on the label size.

The number of the base size (43) comes from the UX design direction.

BUG=313973

Review URL: https://codereview.chromium.org/64013004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233834 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233834