DEPS: Add NodeJS binding dependencies

These are behind the new `dawn_node` flag, which can be enabled by using the new `scripts/standalone-with-node.gclient` file.

Bug: dawn:1123
Change-Id: Ia7ca715808e46b17f91338f56ffc6794d0104fd7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/64900
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
diff --git a/.gitignore b/.gitignore
index 38f94ca..4e12508 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,8 @@
 /third_party/jsoncpp
 /third_party/llvm-build
 /third_party/markupsafe
+/third_party/node-addon-api
+/third_party/node-api-headers
 /third_party/swiftshader
 /third_party/tint
 /third_party/vulkan-deps