Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

mojo/edk/js/test/BUILD.gn

Index: mojo/edk/js/test/BUILD.gn
diff --git a/third_party/mojo/src/mojo/edk/js/test/BUILD.gn b/mojo/edk/js/test/BUILD.gn
similarity index 60%
copy from third_party/mojo/src/mojo/edk/js/test/BUILD.gn
copy to mojo/edk/js/test/BUILD.gn
index d5439121b39bb26557e5d14603ff9bf81adef7ef..6b1d44535fe35945cf666d86ff51e5a5eff7da76 100644
--- a/third_party/mojo/src/mojo/edk/js/test/BUILD.gn
+++ b/mojo/edk/js/test/BUILD.gn
@@ -10,14 +10,14 @@ test("js_unittests") {
     "../../js:js_unittests",
     "../../test:run_all_unittests",
     "../../test:test_support",
-    "../../../public/cpp/environment",
-    "../../../public/cpp/system",
-    "../../../public/cpp/utility",
-    "../../../public/interfaces/bindings/tests:test_interfaces",
-    "../../../public/interfaces/bindings/tests:test_interfaces_experimental",
     "//base",
     "//gin:gin_test",
     "//mojo/environment:chromium",
+    "//third_party/mojo/src/mojo/public/cpp/environment",
+    "//third_party/mojo/src/mojo/public/cpp/system",
+    "//third_party/mojo/src/mojo/public/cpp/utility",
+    "//third_party/mojo/src/mojo/public/interfaces/bindings/tests:test_interfaces",
+    "//third_party/mojo/src/mojo/public/interfaces/bindings/tests:test_interfaces_experimental",
   ]
 
   sources = [
@@ -31,8 +31,8 @@ test("js_integration_tests") {
     "../../js/tests:js_to_cpp_tests",
     "../../test:run_all_unittests",
     "../../test:test_support",
-    "../../../public/cpp/bindings",
-    "../../../public/interfaces/bindings/tests:test_interfaces",
+    "//third_party/mojo/src/mojo/public/cpp/bindings",
+    "//third_party/mojo/src/mojo/public/interfaces/bindings/tests:test_interfaces",
     "//base",
     "//gin:gin_test",
     "//mojo/environment:chromium",