Bootstrap Mojo IPC independent of Chrome IPC

mojo/edk/embedder/embedder.h

Index: mojo/edk/embedder/embedder.h
diff --git a/mojo/edk/embedder/embedder.h b/mojo/edk/embedder/embedder.h
index 6c010f416d97558fc04791274bea12c28731d80c..8e60c64ffae55e86e09ebec6cd899499cc69fd66 100644
--- a/mojo/edk/embedder/embedder.h
+++ b/mojo/edk/embedder/embedder.h
@@ -39,15 +39,33 @@ MOJO_SYSTEM_IMPL_EXPORT void SetMaxMessageSize(size_t bytes);
 // SetParentPipeHandle.
 MOJO_SYSTEM_IMPL_EXPORT ScopedPlatformHandle ChildProcessLaunched(
     base::ProcessHandle child_process);
+
 // Like above, except used when the embedder establishes the pipe between the
 // parent and child processes itself.
 MOJO_SYSTEM_IMPL_EXPORT void ChildProcessLaunched(
     base::ProcessHandle child_process, ScopedPlatformHandle server_pipe);
 
+// Also like above, except used when the embedder has additionally passed an
+// out-of-band secret to the child process which must be received on this
+// |server_pipe| and validated before a working pipe can be established.
+//
+// NOTE: This should only be used to support Windows named pipes.
+MOJO_SYSTEM_IMPL_EXPORT void ChildProcessLaunched(
+    base::ProcessHandle child_process,
+    ScopedPlatformHandle server_pipe,
+    const std::string& secret);
+
 // Should be called as early as possible in the child process with the handle
 // that the parent received from ChildProcessLaunched.
 MOJO_SYSTEM_IMPL_EXPORT void SetParentPipeHandle(ScopedPlatformHandle pipe);
 
+// Like above, except used when the parent has passed the child an out-of-band
+// secret which must be sent on |pipe| before a working pipe can be established.
+//
+// NOTE: This should only be used to support Windows named pipes.
+MOJO_SYSTEM_IMPL_EXPORT void SetParentPipeHandle(ScopedPlatformHandle pipe,
+                                                 const std::string& secret);
+
 // Must be called first, or just after setting configuration parameters, to
 // initialize the (global, singleton) system.
 MOJO_SYSTEM_IMPL_EXPORT void Init();