diff --git a/chrome/chrome_branch_deps.json b/chrome/chrome_branch_deps.json
new file mode 100644
index 00000000000000..9049d768b91008
--- /dev/null
+++ b/chrome/chrome_branch_deps.json
@@ -0,0 +1,17 @@
+{
+  "src": "refs/branch-heads/6440",
+  "src:src/clank": "refs/heads/chromium/6440",
+  "src:src/components/optimization_guide/internal": "refs/heads/chromium/6440",
+  "src:src/internal": "refs/heads/chromium/6440",
+  "src:src/ios_internal": "refs/heads/chromium/6440",
+  "src:src/third_party/angle": "refs/heads/chromium/6440",
+  "src:src/third_party/dawn": "refs/heads/chromium/6440",
+  "src:src/third_party/devtools-frontend-internal": "refs/heads/chromium/6440",
+  "src:src/third_party/devtools-frontend-internal:devtools-frontend": "refs/heads/chromium/6440",
+  "src:src/third_party/devtools-frontend/src": "refs/heads/chromium/6440",
+  "src:src/third_party/instrumented_libs": "refs/heads/chromium/6440",
+  "src:src/third_party/pdfium": "refs/heads/chromium/6440",
+  "src:src/third_party/vulkan-deps": "refs/heads/chromium/6440",
+  "src:src/third_party/webrtc": "refs/branch-heads/6440",
+  "src:src/v8": "refs/heads/chromium/6440"
+}