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

mojo/runner/context.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_RUNNER_CONTEXT_H_
 #define MOJO_RUNNER_CONTEXT_H_
 
 #include <set>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/time/time.h"
-#include "mojo/edk/embedder/process_delegate.h"
 #include "mojo/runner/scoped_user_data_dir.h"
 #include "mojo/runner/task_runners.h"
 #include "mojo/shell/application_manager.h"
 #include "url/gurl.h"
 
+#if defined(USE_CHROME_EDK)
+#include "mojo/edk/embedder/process_delegate.h"
+#else
+#include "third_party/mojo/src/mojo/edk/embedder/process_delegate.h"
+#endif
+
 namespace mojo {
 namespace package_manager {
 class PackageManagerImpl;
 }
 namespace runner {
 
 class NativeApplicationLoader;
 
 // The "global" context for the shell's main process.
+#if defined(USE_CHROME_EDK)
+class Context : public edk::ProcessDelegate {
+#else
 class Context : public embedder::ProcessDelegate {
+#endif
  public:
   explicit Context(const base::FilePath& shell_file_root);
   ~Context() override;
 
   static void EnsureEmbedderIsInitialized();
 
   // This must be called with a message loop set up for the current thread,
   // which must remain alive until after Shutdown() is called. Returns true on
   // success.
   bool Init();
@@ skipping 37 matching lines @@
   base::Closure app_complete_callback_;
   base::Time main_entry_time_;
 
   DISALLOW_COPY_AND_ASSIGN(Context);
 };
 
 }  // namespace runner
 }  // namespace mojo
 
 #endif  // MOJO_RUNNER_CONTEXT_H_