Add a DEPS file to Blink to control the revisions of the w3c test repos.

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
new file mode 100644
index 0000000000000000000000000000000000000000..b18853b4b2fd95c8e342e8ebbbf44b1e59005a95
--- /dev/null
+++ b/DEPS
@@ -0,0 +1,17 @@
+vars = {
+  "chromium_git": "https://chromium.googlesource.com",
+}
+
+deps = {
+  # FIXME, for now we checkout out these repos at empty revisions so that
+  # we don't run any tests in them.
+  # Once we can drop the repos pulled in directly through Chromium's src/DEPS,
+  # we can move to r6bed4516fe8522d65512c76ef02e4f0ae8234395.
+  "src/third_party/WebKit/LayoutTests/third_party/web-platform-tests":
+    Var("chromium_git") +
+     "/external/w3c/web-platform-tests.git@35a9c0f1348052303a03523781c26ca98572ffa7",
+
+  "src/third_party/WebKit/LayoutTests/third_party/csswg-test":
+    Var("chromium_git") +
+    "/external/w3c/csswg-test.git@bacbb4a8dca702cd86646761fde96793db13d4f1",
+}