Pull in Mesa to src/third_party/mesa/src via DEPS.

To avoid trouble on the bots, the old location src/third_party/mesa/MesaLib
will be deleted once the sources have been updated to point to the new
location, and LKGR has rolled well past this revision.

BUG=238755
R=apatrick@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16488007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204765 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/DEPS b/DEPS
index 6a127c2..d18830d 100644
--- a/DEPS
+++ b/DEPS
@@ -317,6 +317,9 @@
 
   "src/webkit/renderer/media/crypto/ppapi/cdm":
     "/trunk/deps/cdm@181763",
+
+  "src/third_party/mesa/src":
+    "/trunk/deps/third_party/mesa@204346",
 }