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

content/common/mojo/channel_init.cc

Index: content/common/mojo/channel_init.cc
diff --git a/content/common/mojo/channel_init.cc b/content/common/mojo/channel_init.cc
index e81515c2da0eda8f573fd5a418817fed7b2c33c9..fe25decd5f28f578f9e0b845ec48fc47dd443346 100644
--- a/content/common/mojo/channel_init.cc
+++ b/content/common/mojo/channel_init.cc
@@ -12,8 +12,9 @@
 #include "third_party/mojo/src/mojo/edk/embedder/embedder.h"
 
 namespace content {
-
-ChannelInit::ChannelInit() : channel_info_(nullptr), weak_factory_(this) {}
+ChannelInit::ChannelInit()
+    : channel_info_(nullptr),
+      weak_factory_(this) {}
 
 ChannelInit::~ChannelInit() {
   if (channel_info_)
@@ -49,6 +50,7 @@ void ChannelInit::ShutdownOnIOThread() {
   ipc_support_.reset();
 }
 
+
 // static
 void ChannelInit::OnCreatedChannel(
     base::WeakPtr<ChannelInit> self,