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

mojo/BUILD.gn

Index: mojo/BUILD.gn
diff --git a/mojo/BUILD.gn b/mojo/BUILD.gn
index 2bb0214fecd4eb1585489d46ecb23772f78077ee..1ba9399b26fe5108550955d26fa6cd481bfad4d1 100644
--- a/mojo/BUILD.gn
+++ b/mojo/BUILD.gn
@@ -27,36 +27,51 @@ group("mojo") {
 # The _run targets exist only for compatibility w/ GYP.
 group("mojo_public_bindings_unittests_run") {
   testonly = true
-  deps = [
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_bindings_unittests",
-  ]
+  deps = []
+  if (use_chrome_edk) {
+    deps += [ "//mojo/edk/test:mojo_public_bindings_unittests" ]
+  } else {
+    deps += [ "//third_party/mojo/src/mojo/edk/test:mojo_public_bindings_unittests" ]
+  }
 }
 
 # TODO(GYP): Delete this after we've converted everything to GN.
 # The _run targets exist only for compatibility w/ GYP.
 group("mojo_public_environment_unittests_run") {
   testonly = true
-  deps = [
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_environment_unittests",
-  ]
+  deps = []
+  if (use_chrome_edk) {
+    deps += [ "//mojo/edk/test:mojo_public_bindings_unittests" ]
+  } else {
+    deps += [ "//third_party/mojo/src/mojo/edk/test:mojo_public_bindings_unittests" ]
+  }
 }
 
 # TODO(GYP): Delete this after we've converted everything to GN.
 # The _run targets exist only for compatibility w/ GYP.
 group("mojo_public_system_unittests_run") {
   testonly = true
-  deps = [
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_system_unittests",
-  ]
+
+  deps = []
+  if (use_chrome_edk) {
+    deps += [ "//mojo/edk/test:mojo_public_system_unittests" ]
+  } else {
+    deps +=
+        [ "//third_party/mojo/src/mojo/edk/test:mojo_public_system_unittests" ]
+  }
 }
 
 # TODO(GYP): Delete this after we've converted everything to GN.
 # The _run targets exist only for compatibility w/ GYP.
 group("mojo_public_utility_unittests_run") {
   testonly = true
-  deps = [
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_utility_unittests",
-  ]
+  deps = []
+  if (use_chrome_edk) {
+    deps += [ "//mojo/edk/test:mojo_public_utility_unittests" ]
+  } else {
+    deps +=
+        [ "//third_party/mojo/src/mojo/edk/test:mojo_public_utility_unittests" ]
+  }
 }
 
 group("tests") {
@@ -66,16 +81,32 @@ group("tests") {
     "//mojo/application/public/cpp/tests:mojo_public_application_unittests",
     "//mojo/common:mojo_common_unittests",
     "//mojo/converters/surfaces/tests:mojo_surfaces_lib_unittests",
-    "//third_party/mojo/src/mojo/edk/js/test:js_unittests",
-    "//third_party/mojo/src/mojo/edk/system:mojo_message_pipe_perftests",
-    "//third_party/mojo/src/mojo/edk/system:mojo_system_unittests",
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_bindings_unittests",
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_environment_unittests",
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_system_perftests",
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_system_unittests",
-    "//third_party/mojo/src/mojo/edk/test:mojo_public_utility_unittests",
   ]
 
+  if (use_chrome_edk) {
+    deps += [
+      "//mojo/edk/js/test:js_unittests",
+      "//mojo/edk/system:mojo_message_pipe_perftests",
+      "//mojo/edk/system:mojo_system_unittests",
+      "//mojo/edk/test:mojo_public_bindings_unittests",
+      "//mojo/edk/test:mojo_public_environment_unittests",
+      "//mojo/edk/test:mojo_public_system_perftests",
+      "//mojo/edk/test:mojo_public_system_unittests",
+      "//mojo/edk/test:mojo_public_utility_unittests",
+    ]
+  } else {
+    deps += [
+      "//third_party/mojo/src/mojo/edk/js/test:js_unittests",
+      "//third_party/mojo/src/mojo/edk/system:mojo_message_pipe_perftests",
+      "//third_party/mojo/src/mojo/edk/system:mojo_system_unittests",
+      "//third_party/mojo/src/mojo/edk/test:mojo_public_bindings_unittests",
+      "//third_party/mojo/src/mojo/edk/test:mojo_public_environment_unittests",
+      "//third_party/mojo/src/mojo/edk/test:mojo_public_system_perftests",
+      "//third_party/mojo/src/mojo/edk/test:mojo_public_system_unittests",
+      "//third_party/mojo/src/mojo/edk/test:mojo_public_utility_unittests",
+    ]
+  }
+
   if (!is_component_build) {
     deps += [
       "//mojo/runner:apptests",