GitLab

Previously, the selection ranges were set implicitly when setValue() was
called.  After [ https://codereview.chromium.org/258063005/ ], setValue()
will no longer implicitly set a field's selection range, so do so explicitly.

BUG=367736, 133242
TEST=browser_tests

Review URL: https://codereview.chromium.org/373023004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@281975 0039d316-1c4b-4281-b951-d872f2087c98