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

mojo/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/ui.gni")
 
 group("mojo") {
   # Meta-target, don't link into production code.
   testonly = true
   deps = [
     ":tests",
     "//mojo/common",
     "//mojo/services",
     "//third_party/mojo/src/mojo/public",
   ]
 
   if (is_android) {
     deps += [ "//mojo/android" ]
   }
 
   if (!is_component_build) {
     deps += [ "//mojo/runner" ]
   }
 }
 
 # TODO(GYP): Delete this after we've converted everything to GN.
 # 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") {
   testonly = true
   deps = [
     "//ipc/mojo:ipc_mojo_unittests",
     "//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",
       "//mojo/runner:mojo_runner_unittests",
       "//mojo/services/network:apptests",
       "//mojo/shell:mojo_shell_unittests",
     ]
 
     if (is_android) {
       deps += [ "//mojo/runner:mojo_runner_apptests_apk" ]
     }
   }
 }