DEPS update: webkit to 202694

Closes https://github.com/dart-lang/sdk/issues/24771
diff --git a/tools/deps/dartium.deps/DEPS b/tools/deps/dartium.deps/DEPS
index ca01b17..7cb4b7f9 100644
--- a/tools/deps/dartium.deps/DEPS
+++ b/tools/deps/dartium.deps/DEPS
@@ -14,7 +14,7 @@
   "dartium_chromium_commit": "62a7524d4f71c9e0858d24b0aa1bbff3a2d09bff",
   "chromium_base_revision": "297060",
   "dartium_webkit_branch": "/blink/branches/dart/2171_4",
-  "dartium_webkit_revision": "202693",
+  "dartium_webkit_revision": "202694",
 
   # We use mirrors of all github repos to guarantee reproducibility and
   # consistency between what users see and what the bots see.