Revert 246122 "Adds the new image for display notifications."

Broke ash_unittests on Win7 Tests (dbg)(1) (stats).

http://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20(dbg)(1)

Some of the failed tests:

ResolutionNotificationControllerTest.Basic
ResolutionNotificationControllerTest.ClickMeansAccept
ResolutionNotificationControllerTest.AcceptButton
ResolutionNotificationControllerTest.Close

> Adds the new image for display notifications.
> 
> BUG=254737
> R=oshima@chromium.org
> TEST=manually
> 
> Review URL: https://codereview.chromium.org/141653004

TBR=mukai@chromium.org

Review URL: https://codereview.chromium.org/143803011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246187 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246187
gn: Pass through msan flag.

BUG=none
TEST=GYP_DEFINES=msan=1 build/gyp_chromium works.
TBR=brettw@chromium.org

Review URL: https://codereview.chromium.org/136973012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246188 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246188