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

mojo/edk/js/core.h

Index: mojo/edk/js/core.h
diff --git a/third_party/mojo/src/mojo/edk/js/core.h b/mojo/edk/js/core.h
similarity index 92%
copy from third_party/mojo/src/mojo/edk/js/core.h
copy to mojo/edk/js/core.h
index 445fb00337d54bb275ed63c2553a6968c1843073..c13b2da46463a17c5118ee0e123b84ac14c11837 100644
--- a/third_party/mojo/src/mojo/edk/js/core.h
+++ b/mojo/edk/js/core.h
@@ -8,7 +8,7 @@
 #include "v8/include/v8.h"
 
 namespace mojo {
-namespace js {
+namespace edk {
 
 class Core {
  public:
@@ -16,7 +16,7 @@ class Core {
   static v8::Local<v8::Value> GetModule(v8::Isolate* isolate);
 };
 
-}  // namespace js
+}  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_JS_CORE_H_