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

mojo/edk/embedder/process_delegate.h

Index: mojo/edk/embedder/process_delegate.h
diff --git a/third_party/mojo/src/mojo/edk/embedder/process_delegate.h b/mojo/edk/embedder/process_delegate.h
similarity index 79%
copy from third_party/mojo/src/mojo/edk/embedder/process_delegate.h
copy to mojo/edk/embedder/process_delegate.h
index 5c1406ddda941dd15a7253f41bd73312a1b7b68c..e5f90af0196833b7a488e26ddf4f3d701b96435e 100644
--- a/third_party/mojo/src/mojo/edk/embedder/process_delegate.h
+++ b/mojo/edk/embedder/process_delegate.h
@@ -5,18 +5,15 @@
 #ifndef MOJO_EDK_EMBEDDER_PROCESS_DELEGATE_H_
 #define MOJO_EDK_EMBEDDER_PROCESS_DELEGATE_H_
 
-#include "mojo/edk/embedder/process_type.h"
 #include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
-namespace embedder {
+namespace edk {
 
 // An interface for process delegates.
 class MOJO_SYSTEM_IMPL_EXPORT ProcessDelegate {
  public:
-  virtual ProcessType GetType() const;
-
   // Called when |ShutdownIPCSupport()| has "completed". Note that this is NOT
   // called if |ShutdownIPCSupportOnIOThread()| is used instead.
   virtual void OnShutdownComplete() = 0;
@@ -29,11 +26,7 @@ class MOJO_SYSTEM_IMPL_EXPORT ProcessDelegate {
   MOJO_DISALLOW_COPY_AND_ASSIGN(ProcessDelegate);
 };
 
-inline ProcessType ProcessDelegate::GetType() const {
-  return ProcessType::NONE;
-}
-
-}  // namespace embedder
+}  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_EMBEDDER_PROCESS_DELEGATE_H_