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

mojo/runner/context.cc

Index: mojo/runner/context.cc
diff --git a/mojo/runner/context.cc b/mojo/runner/context.cc
index c7bda8c9c237d34ae3b4402250d1d69540843ae7..1633d19234dbf68ce695fdc03169ba90461a0a5c 100644
--- a/mojo/runner/context.cc
+++ b/mojo/runner/context.cc
@@ -27,8 +27,6 @@
 #include "mojo/application/public/cpp/application_impl.h"
 #include "mojo/common/trace_controller_impl.h"
 #include "mojo/common/tracing_impl.h"
-#include "mojo/edk/embedder/embedder.h"
-#include "mojo/edk/embedder/simple_platform_support.h"
 #include "mojo/package_manager/package_manager_impl.h"
 #include "mojo/runner/in_process_native_runner.h"
 #include "mojo/runner/out_of_process_native_runner.h"
@@ -40,6 +38,7 @@
 #include "mojo/shell/query_util.h"
 #include "mojo/shell/switches.h"
 #include "mojo/util/filename_util.h"
+#include "third_party/mojo/src/mojo/edk/embedder/embedder.h"
 #include "url/gurl.h"
 
 namespace mojo {
@@ -50,7 +49,7 @@ namespace {
 class Setup {
  public:
   Setup() {
-    embedder::Init(make_scoped_ptr(new embedder::SimplePlatformSupport()));
+    embedder::Init();
   }
 
   ~Setup() {}
@@ -190,7 +189,6 @@ bool Context::Init() {
   EnsureEmbedderIsInitialized();
   task_runners_.reset(
       new TaskRunners(base::MessageLoop::current()->task_runner()));
-
   // TODO(vtl): This should be MASTER, not NONE.
   embedder::InitIPCSupport(
       embedder::ProcessType::NONE, task_runners_->shell_runner(), this,