Use token-based initialisation for the utility process MojoApplication.

content/common/in_process_child_thread_params.h

Index: content/common/in_process_child_thread_params.h
diff --git a/content/common/in_process_child_thread_params.h b/content/common/in_process_child_thread_params.h
index 73838db02d576b49d8c6a0497dc0465ae53d3f90..4d8e5fd0717be54755e16f97fc5a6b99bedf53e1 100644
--- a/content/common/in_process_child_thread_params.h
+++ b/content/common/in_process_child_thread_params.h
@@ -22,7 +22,8 @@ class CONTENT_EXPORT InProcessChildThreadParams {
   InProcessChildThreadParams(
       const std::string& channel_name,
       scoped_refptr<base::SequencedTaskRunner> io_runner,
-      mojo::MessagePipeHandle handle = mojo::MessagePipeHandle());
+      mojo::MessagePipeHandle handle = mojo::MessagePipeHandle(),
+      mojo::MessagePipeHandle application_handle = mojo::MessagePipeHandle());
   InProcessChildThreadParams(const InProcessChildThreadParams& other);
   ~InProcessChildThreadParams();
 
@@ -31,11 +32,15 @@ class CONTENT_EXPORT InProcessChildThreadParams {
     return io_runner_;
   }
   mojo::MessagePipeHandle handle() const { return handle_; }
+  mojo::MessagePipeHandle application_handle() const {
+    return application_handle_;
+  }
 
  private:
   std::string channel_name_;
   scoped_refptr<base::SequencedTaskRunner> io_runner_;
   mojo::MessagePipeHandle handle_;
+  mojo::MessagePipeHandle application_handle_;
 };
 
 }  // namespace content