diff --git a/DEPS b/DEPS
index 2089e3e6f3..1c00d7dd67 100644
--- a/DEPS
+++ b/DEPS
@@ -28,6 +28,16 @@ deps = {
     'url': '{chromium_git}/chromium/src/third_party/binutils@01aa7745b0bab64ae22600f09fd6483c60f22ebf',
     'condition': 'dawn_standalone',
   },
+  'tools/clang/dsymutil': {
+    'packages': [
+      {
+        'package': 'chromium/llvm-build-tools/dsymutil',
+        'version': 'M56jPzDv1620Rnm__jTMYS62Zi8rxHVq7yw0qeBFEgkC',
+      }
+    ],
+    'condition': 'checkout_mac or checkout_ios',
+    'dep_type': 'cipd',
+  },
 
   # Testing, GTest and GMock
   'testing': {
diff --git a/tools/memory/asan/blacklist.txt b/tools/memory/asan/blacklist.txt
new file mode 100644
index 0000000000..35fa055dec
--- /dev/null
+++ b/tools/memory/asan/blacklist.txt
@@ -0,0 +1,4 @@
+# The rules in this file are only applied at compile time. If you can modify the
+# source in question, consider function attributes to disable instrumentation.
+#
+# Please think twice before you add or remove these rules.