Build views_unittests as part of chromium_builder_tests on all aura bots, not just on Windows.

BUG=none
NOTRY=true

Review URL: https://codereview.chromium.org/185393017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254706 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254706
win: Remove a few non-aura files that are unused now that aura is always on.

BUG=330735

Review URL: https://codereview.chromium.org/178543012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254707 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254707
mac: Improve performance of throbber animations.

Don't recreate the icon/throbber view everytime we switch states between
waiting, loading, loaded and crashed states.
We now reuse the same view to show throbbers, favicon and also the toast
animation when the tab crashed.
Enable layer based throbbers with the hope that the earlier performance
regressions are addressed with this.
I was not able to repro the regressions locally, but Chris was able to on
a Mac mini running 10.8.

BUG=19268
NOTRY=true

Review URL: https://codereview.chromium.org/178753003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254708 0039d316-1c4b-4281-b951-d872f2087c98
Update QUIC connection close enums in histograms.xml

Review URL: https://codereview.chromium.org/176843014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254709 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254709