Create a broker interface for the new Mojo EDK so that the browser can create and duplicate messa...

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index fd9275eeb5f73114d60689e58349916ebf535ca1..34d7d5358ee9da7652c2af6b1b8d660cd620dc20 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -167,6 +167,7 @@
 #include "storage/browser/fileapi/sandbox_file_system_backend.h"
 #include "third_party/icu/source/common/unicode/unistr.h"
 #include "third_party/icu/source/i18n/unicode/timezone.h"
+#include "third_party/mojo/src/mojo/edk/embedder/embedder.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/events/event_switches.h"
@@ -2465,6 +2466,17 @@ void RenderProcessHostImpl::OnProcessLaunched() {
   tracked_objects::ScopedTracker tracking_profile4(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "465841 RenderProcessHostImpl::OnProcessLaunched::MojoActivate"));
+
+#if defined(OS_WIN)
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch("use-new-edk") &&
+      child_process_launcher_.get()) {
+    HANDLE process_handle = child_process_launcher_->GetProcess().Handle();
+    HANDLE client_pipe = mojo::embedder::ChildProcessLaunched(process_handle);
+    Send(new ChildProcessMsg_SetMojoParentPipeHandle(
+        IPC::GetFileHandleForProcess(client_pipe, process_handle, true)));
+  }
+#endif
+
   // Allow Mojo to be setup before the renderer sees any Chrome IPC messages.
   // This way, Mojo can be safely used from the renderer in response to any
   // Chrome IPC message.