Removes unnecessary SchedulePaints()

This removes two unnecessary SchedulePaints() that are hit fairly
often
. View::SetBoundsRect: case of bounds not changing but needing
  layout. Child views already SchedulePaint if Layout() does
  something, so there should be no need for this call.
. SingleSplitView::Layout() . Again, no need to ScheduledPaint() here
  as SingleSplitView doesn't paint anything if bounds of children
  change.

I've added a test case for the first removal to make sure we don't the
SchedulePaint() doesn't get added back.

BUG=313494
TEST=covered by test
R=ben@chromium.org

Review URL: https://codereview.chromium.org/72073007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235896 0039d316-1c4b-4281-b951-d872f2087c98
Sockets host patterns can be a single entry or an array of entries.
Add more unit tests.

BUG=

Review URL: https://codereview.chromium.org/74393002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235897 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235896
SVN changes up to revision 235897