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

mojo/edk/js/drain_data.cc

Index: mojo/edk/js/drain_data.cc
diff --git a/third_party/mojo/src/mojo/edk/js/drain_data.cc b/mojo/edk/js/drain_data.cc
similarity index 94%
copy from third_party/mojo/src/mojo/edk/js/drain_data.cc
copy to mojo/edk/js/drain_data.cc
index 137b76bff09143e4a72f12fb58bce7f6f75ff4a8..d8fa0917cf304e7135b50734498bc328e0ad6cc3 100644
--- a/third_party/mojo/src/mojo/edk/js/drain_data.cc
+++ b/mojo/edk/js/drain_data.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "third_party/mojo/src/mojo/edk/js/drain_data.h"
+#include "mojo/edk/js/drain_data.h"
 
 #include "gin/array_buffer.h"
 #include "gin/converter.h"
@@ -13,7 +13,7 @@
 #include "mojo/public/cpp/system/core.h"
 
 namespace mojo {
-namespace js {
+namespace edk {
 
 DrainData::DrainData(v8::Isolate* isolate, mojo::Handle handle)
     : isolate_(isolate),
@@ -42,8 +42,11 @@ DrainData::~DrainData() {
 
 void DrainData::WaitForData() {
   wait_id_ = Environment::GetDefaultAsyncWaiter()->AsyncWait(
-      2, handle_.get().value(), MOJO_HANDLE_SIGNAL_READABLE,
-      MOJO_DEADLINE_INDEFINITE, &DrainData::WaitCompleted, this);
+      handle_.get().value(),
+      MOJO_HANDLE_SIGNAL_READABLE,
+      MOJO_DEADLINE_INDEFINITE,
+      &DrainData::WaitCompleted,
+      this);
 }
 
 void DrainData::DataReady(MojoResult result) {
@@ -124,5 +127,5 @@ void DrainData::DeliverData(MojoResult result) {
   delete this;
 }
 
-}  // namespace js
+}  // namespace edk
 }  // namespace mojo