Roll Skia DEPS to r11515

R=rmistry@google.com

Review URL: https://codereview.chromium.org/25188002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225968 0039d316-1c4b-4281-b951-d872f2087c98
Blink roll 158515:158524

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=158516:158524&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/25240002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225969 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225970 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225969
SVN changes up to revision 225970