Add some closureised JS bindings for DevTools for use by headless embedder

headless/headless_browsertest_resources.grd

Index: headless/headless_browsertest_resources.grd
diff --git a/headless/headless_browsertest_resources.grd b/headless/headless_browsertest_resources.grd
new file mode 100644
index 0000000000000000000000000000000000000000..08da556ce05be1b5034d38bda74a148e8f54e185
--- /dev/null
+++ b/headless/headless_browsertest_resources.grd
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<grit latest_public_release="0" current_release="1" output_all_resource_defines="false">
+  <outputs>
+    <output filename="grit/headless_browsertest_resources.h" type="rc_header">
+      <emit emit_type='prepend'></emit>
+    </output>
+    <output filename="headless_browsertest_resources.pak" type="data_package" />
+  </outputs>
+  <translations />
+  <release seq="1">
+    <includes>
+      <include name="DEVTOOLS_BINDINGS_TEST" file="${gen_root}\headless\devtools_bindings_test.js" use_base_dir="false" type="BINDATA" />
+    </includes>
+  </release>
+</grit>