Revert of discardable_memory: Using mojo IPC to replace Chrome IPC

content/common/in_process_child_thread_params.cc

Index: content/common/in_process_child_thread_params.cc
diff --git a/content/common/in_process_child_thread_params.cc b/content/common/in_process_child_thread_params.cc
index ccbeef1017b1e8099b0ffc1f33295e5431bfc6d2..02dc1b4dcd902c632225df0f7ee7aa302a02f34d 100644
--- a/content/common/in_process_child_thread_params.cc
+++ b/content/common/in_process_child_thread_params.cc
@@ -7,10 +7,9 @@
 namespace content {
 
 InProcessChildThreadParams::InProcessChildThreadParams(
-    scoped_refptr<base::SingleThreadTaskRunner> io_runner,
+    scoped_refptr<base::SequencedTaskRunner> io_runner,
     const std::string& service_request_token)
-    : io_runner_(std::move(io_runner)),
-      service_request_token_(service_request_token) {}
+    : io_runner_(io_runner), service_request_token_(service_request_token) {}
 
 InProcessChildThreadParams::InProcessChildThreadParams(
     const InProcessChildThreadParams& other) = default;