Blink roll 162565:162567

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=162566:162567&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/83283005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236975 0039d316-1c4b-4281-b951-d872f2087c98
Add checks to verify that all observed_windows_ are targeted in overview windows_.

BUG=322119

Review URL: https://codereview.chromium.org/83363004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236976 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236977 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236977