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

mojo/edk/system/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("../mojo_edk.gni")
 import("//testing/test.gni")
+import("../../../third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
 
 config("system_config") {
   defines = [
     # Ensures that dependent projects import the core functions on Windows.
     "MOJO_USE_SYSTEM_IMPL",
   ]
 }
 
+mojom("master") {
+  sources = [
+    "master.mojom",
+  ]
+}
+
 component("system") {
   output_name = "mojo_system_impl"
 
   sources = [
     "async_waiter.cc",
     "async_waiter.h",
     "awakable.h",
     "awakable_list.cc",
     "awakable_list.h",
-    "channel.cc",
-    "channel.h",
-    "channel_endpoint.cc",
-    "channel_endpoint.h",
-    "channel_endpoint_client.h",
-    "channel_endpoint_id.cc",
-    "channel_endpoint_id.h",
-    "channel_id.h",
-    "channel_manager.cc",
-    "channel_manager.h",
     "configuration.cc",
     "configuration.h",
-    "connection_identifier.h",
-    "connection_manager.cc",
-    "connection_manager.h",
-    "connection_manager_messages.h",
     "core.cc",
     "core.h",
     "data_pipe.cc",
     "data_pipe.h",
     "data_pipe_consumer_dispatcher.cc",
     "data_pipe_consumer_dispatcher.h",
-    "data_pipe_impl.cc",
-    "data_pipe_impl.h",
     "data_pipe_producer_dispatcher.cc",
     "data_pipe_producer_dispatcher.h",
     "dispatcher.cc",
     "dispatcher.h",
-    "endpoint_relayer.cc",
-    "endpoint_relayer.h",
     "handle_signals_state.h",
     "handle_table.cc",
     "handle_table.h",
-    "incoming_endpoint.cc",
-    "incoming_endpoint.h",
-    "ipc_support.cc",
-    "ipc_support.h",
-    "local_data_pipe_impl.cc",
-    "local_data_pipe_impl.h",
-    "local_message_pipe_endpoint.cc",
-    "local_message_pipe_endpoint.h",
     "mapping_table.cc",
     "mapping_table.h",
-    "master_connection_manager.cc",
-    "master_connection_manager.h",
+    "master_impl.cc",
+    "master_impl.h",
     "memory.cc",
     "memory.h",
     "message_in_transit.cc",
     "message_in_transit.h",
     "message_in_transit_queue.cc",
     "message_in_transit_queue.h",
-    "message_pipe.cc",
-    "message_pipe.h",
     "message_pipe_dispatcher.cc",
     "message_pipe_dispatcher.h",
-    "message_pipe_endpoint.cc",
-    "message_pipe_endpoint.h",
-    "mutex.cc",
-    "mutex.h",
     "options_validation.h",
     "platform_handle_dispatcher.cc",
     "platform_handle_dispatcher.h",
     "process_identifier.h",
-    "proxy_message_pipe_endpoint.cc",
-    "proxy_message_pipe_endpoint.h",
     "raw_channel.cc",
     "raw_channel.h",
     "raw_channel_posix.cc",
     "raw_channel_win.cc",
-    "remote_consumer_data_pipe_impl.cc",
-    "remote_consumer_data_pipe_impl.h",
-    "remote_data_pipe_ack.h",
-    "remote_producer_data_pipe_impl.cc",
-    "remote_producer_data_pipe_impl.h",
     "shared_buffer_dispatcher.cc",
     "shared_buffer_dispatcher.h",
     "simple_dispatcher.cc",
     "simple_dispatcher.h",
-    "slave_connection_manager.cc",
-    "slave_connection_manager.h",
-    "thread_annotations.h",
     "transport_data.cc",
     "transport_data.h",
-    "unique_identifier.cc",
-    "unique_identifier.h",
     "waiter.cc",
     "waiter.h",
   ]
 
   defines = [
     "MOJO_SYSTEM_IMPL_IMPLEMENTATION",
     "MOJO_SYSTEM_IMPLEMENTATION",
   ]
 
   all_dependent_configs = [ ":system_config" ]
 
   public_deps = [
     "../embedder",
     "../embedder:delegates",
     "../embedder:platform",
-    "../../public/c/system",
-    "../../public/cpp/system",
+    "../../../third_party/mojo/src/mojo/public/c/system",
+    "../../../third_party/mojo/src/mojo/public/cpp/system",
   ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
+    ":master",
   ]
 
+  if (is_win) {
+    cflags = [ "/wd4324" ]  # Structure was padded due to __declspec(align()),
+                            # which is uninteresting.
+  }
+
   allow_circular_includes_from = [ "../embedder" ]
 }
 
 group("tests") {
   testonly = true
   deps = [
     ":mojo_system_unittests",
     ":mojo_message_pipe_perftests",
   ]
 }
 
 mojo_edk_source_set("test_utils") {
   testonly = true
 
   sources = [
     "test_utils.cc",
     "test_utils.h",
   ]
 
-  mojo_sdk_public_deps = [
-    "mojo/public/c/system",
-    "mojo/public/cpp/system",
+  public_deps = [
+    "//third_party/mojo/src/mojo/public/c/system",
+    "//third_party/mojo/src/mojo/public/cpp/system",
   ]
 
   deps = [
     "//base",
     "//base/test:test_support",
   ]
 }
 
 test("mojo_system_unittests") {

[Ken Rockot(use gerrit already), 2015/09/23 22:32:17]

GN also chokes on this, again because of conflicting test target names. In this
case maybe we can just wrap it and all its dependences (basically everything
from line 110 down to EOF) an if (use_chrome_edk), and do the same thing for the
third_party equivalents with if (!use_chrome_edk)

   sources = [
     "../test/multiprocess_test_helper_unittest.cc",
     "awakable_list_unittest.cc",
-    "channel_endpoint_id_unittest.cc",
-    "channel_endpoint_unittest.cc",
-    "channel_manager_unittest.cc",
-    "channel_test_base.cc",
-    "channel_test_base.h",
-    "channel_unittest.cc",
-    "connection_manager_unittest.cc",
     "core_test_base.cc",
     "core_test_base.h",
     "core_unittest.cc",
-    "data_pipe_impl_unittest.cc",
     "data_pipe_unittest.cc",
     "dispatcher_unittest.cc",
-    "endpoint_relayer_unittest.cc",
-    "ipc_support_unittest.cc",
+    "master_impl_unittest.cc",
     "memory_unittest.cc",
-    "message_in_transit_queue_unittest.cc",
-    "message_in_transit_test_utils.cc",
-    "message_in_transit_test_utils.h",
-    "message_pipe_dispatcher_unittest.cc",
+
+    #"message_in_transit_queue_unittest.cc",
+    #"message_in_transit_test_utils.cc",
+    #"message_in_transit_test_utils.h",
+    #"message_pipe_dispatcher_unittest.cc",
     "message_pipe_test_utils.cc",
     "message_pipe_test_utils.h",
     "message_pipe_unittest.cc",
     "multiprocess_message_pipe_unittest.cc",
-    "mutex_unittest.cc",
     "options_validation_unittest.cc",
     "platform_handle_dispatcher_unittest.cc",
-    "raw_channel_unittest.cc",
-    "remote_data_pipe_impl_unittest.cc",
-    "remote_message_pipe_unittest.cc",
+
+    #"raw_channel_unittest.cc",
     "run_all_unittests.cc",
     "shared_buffer_dispatcher_unittest.cc",
     "simple_dispatcher_unittest.cc",
-    "test_channel_endpoint_client.cc",
-    "test_channel_endpoint_client.h",
-    "thread_annotations_unittest.cc",
-    "unique_identifier_unittest.cc",
     "waiter_test_utils.cc",
     "waiter_test_utils.h",
     "waiter_unittest.cc",
   ]
 
   deps = [
     ":system",
     ":test_utils",
     "../embedder:embedder_unittests",
+    "../../../third_party/mojo/src/mojo/public/cpp/environment:standalone",
     "../test:test_support",
     "//base",
     "//base/test:test_support",
     "//testing/gtest",
   ]
 
   allow_circular_includes_from = [ "../embedder:embedder_unittests" ]
 }
 
 test("mojo_message_pipe_perftests") {
   sources = [
     "message_pipe_perftest.cc",
     "message_pipe_test_utils.cc",
     "message_pipe_test_utils.h",
   ]
 
   deps = [
     ":system",
     ":test_utils",
     "../test:test_support",
+    "../test:run_all_perftests",
+    "../../../third_party/mojo/src/mojo/public/cpp/environment:standalone",
     "//base",
     "//base/test:test_support",
-    "//base/test:test_support_perf",
+
+    #"//base/test:test_support_perf",
     "//testing/gtest",
   ]
 }