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

mojo/runner/child_process_host.h

 // Copyright 2014 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_CHILD_PROCESS_HOST_H_
 #define MOJO_RUNNER_CHILD_PROCESS_HOST_H_
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/process/process.h"
-#include "mojo/edk/embedder/channel_info_forward.h"
+#include "mojo/runner/child_process.mojom.h"
+#include "mojo/runner/child_process_host.h"
+
+#if defined(USE_CHROME_EDK)
 #include "mojo/edk/embedder/platform_channel_pair.h"
 #include "mojo/edk/embedder/scoped_platform_handle.h"
-#include "mojo/runner/child_process.mojom.h"
-#include "mojo/runner/child_process_host.h"
+#else
+#include "third_party/mojo/src/mojo/edk/embedder/channel_info_forward.h"
+#include "third_party/mojo/src/mojo/edk/embedder/platform_channel_pair.h"
+#include "third_party/mojo/src/mojo/edk/embedder/scoped_platform_handle.h"
+#endif
 
 namespace mojo {
 namespace runner {
 
 class Context;
 
 // This class represents a "child process host". Handles launching and
 // connecting a platform-specific "pipe" to the child, and supports joining the
 // child process. Currently runs a single app (loaded from the file system).
 //
@@ skipping 32 matching lines @@
 
  protected:
   // virtual for testing.
   virtual void DidStart(bool success);
 
  private:
   bool DoLaunch();
 
   void AppCompleted(int32_t result);
 
+#if !defined(USE_CHROME_EDK)
   // Callback for |embedder::CreateChannel()|.
   void DidCreateChannel(embedder::ChannelInfo* channel_info);
+#endif
 
   Context* const context_;
   bool start_sandboxed_;
   const base::FilePath app_path_;
   base::Process child_process_;
+  ChildControllerPtr controller_;
+#if defined(USE_CHROME_EDK)
+  edk::PlatformChannelPair platform_channel_pair_;
+  // Platform-specific "pipe" to the child process. Valid immediately after
+  // creation.
+  edk::ScopedPlatformHandle platform_channel_;
+#else
   embedder::PlatformChannelPair platform_channel_pair_;
-  ChildControllerPtr controller_;
   embedder::ChannelInfo* channel_info_;
-  ChildController::StartAppCallback on_app_complete_;
-
   // Platform-specific "pipe" to the child process. Valid immediately after
   // creation.
   embedder::ScopedPlatformHandle platform_channel_;
+#endif
+  ChildController::StartAppCallback on_app_complete_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildProcessHost);
 };
 
 }  // namespace runner
 }  // namespace mojo
 
 #endif  // MOJO_RUNNER_CHILD_PROCESS_HOST_H_