Make the system tray date/time easier to read in braille.

R=stevenjb@chromium.org
TESTED=manually, tab through status tray with speech and braille and observe the added space.
BUG=

Review URL: https://codereview.chromium.org/82733011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237118 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237118
Always create FrameTreeNodes and RenderFrameHosts for every frame.

This allows us to run the FrameTreeShape tests without a flag.

BUG=245126
TEST=FrameTreeBrowserTest.FrameTreeShape*

Review URL: https://codereview.chromium.org/82033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237119 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237119