GitLab

r166410 disabled the browser from entering fullscreen mode when any one
tab has a constrained window open (e.g., Print dialog).  However, this
is inconsistent with the behavior on all other desktop platforms.  This
change removes the restriction.

Landing on behalf of miu@chromium.org manually, as to make a branch cut.

BUG=366567,146451
TEST=Repro steps in bug 366567 (easier to understand from the multiple demo videos).  Also, manual testing of browser transition into and out of fullscreen before/after a print dialog is open.
R=avi@chromium.org, sky@chromium.org

Review URL: https://codereview.chromium.org/253493005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266653 0039d316-1c4b-4281-b951-d872f2087c98