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

content/app/mojo/mojo_init.cc

 // 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.
 
 #include "content/app/mojo/mojo_init.h"
 
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 #include "ipc/ipc_channel.h"
+
+#if defined(USE_CHROME_EDK)
+#include "mojo/edk/embedder/embedder.h"
+#include "mojo/edk/embedder/simple_platform_support.h"
+#else
 #include "third_party/mojo/src/mojo/edk/embedder/configuration.h"
 #include "third_party/mojo/src/mojo/edk/embedder/embedder.h"
 #include "third_party/mojo/src/mojo/edk/embedder/simple_platform_support.h"
+#endif
 
 namespace content {
 
 namespace {
 
 class MojoInitializer {
  public:
   MojoInitializer() {
+#if defined(USE_CHROME_EDK)
+  mojo::embedder::SetMaxMessageSize(IPC::Channel::kMaximumMessageSize);
+#else
     mojo::embedder::GetConfiguration()->max_message_num_bytes =
         IPC::Channel::kMaximumMessageSize;
+#endif
     mojo::embedder::Init(scoped_ptr<mojo::embedder::PlatformSupport>(
         new mojo::embedder::SimplePlatformSupport()));
   }
 };
 
 base::LazyInstance<MojoInitializer>::Leaky mojo_initializer;
 
 }  //  namespace
 
 void InitializeMojo() {
   mojo_initializer.Get();
 }
 
 }  // namespace content