roll skia to 2562

Review URL: http://codereview.chromium.org/8418032

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107951 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -30,7 +30,7 @@ vars = {
   "libvpx_revision": "107145",
   "ffmpeg_revision": "107500",
   "sfntly_revision": "98",
-  "skia_revision": "2549",
+  "skia_revision": "2562",
   "v8_revision": "9637",
   "webrtc_revision": "808",
   "jsoncpp_revision": "246",