Bootstrap Mojo IPC independent of Chrome IPC

mojo/edk/system/core.cc

Index: mojo/edk/system/core.cc
diff --git a/mojo/edk/system/core.cc b/mojo/edk/system/core.cc
index 17f7bf5f7a6b92aabd88c4fee333318ddfb16112..eed6f3278e97d26adb7e88409a3a7e793f740616 100644
--- a/mojo/edk/system/core.cc
+++ b/mojo/edk/system/core.cc
@@ -81,12 +81,24 @@ scoped_refptr<Dispatcher> Core::GetDispatcher(MojoHandle handle) {
 
 void Core::AddChild(base::ProcessHandle process_handle,
                     ScopedPlatformHandle platform_handle) {
-  GetNodeController()->ConnectToChild(process_handle,
-                                      std::move(platform_handle));
+  GetNodeController()->ConnectToChild(
+      process_handle, std::move(platform_handle), "");
+}
+
+void Core::AddChild(base::ProcessHandle process_handle,
+                    ScopedPlatformHandle platform_handle,
+                    const std::string& secret) {
+  GetNodeController()->ConnectToChild(
+      process_handle, std::move(platform_handle), secret);
 }
 
 void Core::InitChild(ScopedPlatformHandle platform_handle) {
-  GetNodeController()->ConnectToParent(std::move(platform_handle));
+  GetNodeController()->ConnectToParent(std::move(platform_handle), "");
+}
+
+void Core::InitChild(ScopedPlatformHandle platform_handle,
+                     const std::string& secret) {
+  GetNodeController()->ConnectToParent(std::move(platform_handle), secret);
 }
 
 MojoHandle Core::AddDispatcher(scoped_refptr<Dispatcher> dispatcher) {