Support creating mojo peer connections from named pipes.

mojo/edk/embedder/BUILD.gn

Index: mojo/edk/embedder/BUILD.gn
diff --git a/mojo/edk/embedder/BUILD.gn b/mojo/edk/embedder/BUILD.gn
index f20fd40230d4b4270364fedf44c28bf55d33f1e4..67a7376eb45df3def2e4e0345b2d6741b1cc4ffb 100644
--- a/mojo/edk/embedder/BUILD.gn
+++ b/mojo/edk/embedder/BUILD.gn
@@ -10,6 +10,8 @@ source_set("headers") {
     "embedder.h",
     "embedder_internal.h",
     "named_platform_channel_pair.h",
+    "named_platform_handle.h",
+    "named_platform_handle_utils.h",
     "platform_channel_pair.h",
     "platform_handle.h",
     "platform_handle_utils.h",
@@ -77,6 +79,9 @@ source_set("platform") {
   sources = [
     "named_platform_channel_pair.h",
     "named_platform_channel_pair_win.cc",
+    "named_platform_handle.h",
+    "named_platform_handle_utils.h",
+    "named_platform_handle_utils_win.cc",
     "platform_channel_pair.cc",
     "platform_channel_pair.h",
     "platform_channel_pair_posix.cc",
@@ -93,6 +98,9 @@ source_set("platform") {
     "platform_shared_buffer.h",
     "scoped_platform_handle.h",
   ]
+  if (!is_nacl) {
+    sources += [ "named_platform_handle_utils_posix.cc" ]
+  }
 
   defines = [ "MOJO_SYSTEM_IMPL_IMPLEMENTATION" ]