Should paint border before background when bleedAvoidance is  BackgroundBleedBackgroundOverBorder.

This is a fixing patch for a regression caused by r158295:
http://src.chromium.org/viewvc/blink?revision=158295&view=revision

BUG=305216
TEST=fast/table/table-with-border-radius.html

Review URL: https://codereview.chromium.org/26997002

git-svn-id: svn://svn.chromium.org/blink/trunk@163220 bbb929c8-8fbe-4397-9dbb-9b2b20218538
File constructor understands lastModified.

This re-lands https://codereview.chromium.org/74213009/ with a
modification to the File constructor layout tests that should make it
not flake on XP.

BUG=164933

Review URL: https://codereview.chromium.org/80983002

git-svn-id: svn://svn.chromium.org/blink/trunk@163221 bbb929c8-8fbe-4397-9dbb-9b2b20218538