base: Move renderer threads to the appropriate cpuset.

content/child/child_thread_impl.cc

Index: content/child/child_thread_impl.cc
diff --git a/content/child/child_thread_impl.cc b/content/child/child_thread_impl.cc
index 29454b64e1ab12feba98ce80e1d88bb66093b504..22277efed0a2c3ec2ee03746e433bab96daba99f 100644
--- a/content/child/child_thread_impl.cc
+++ b/content/child/child_thread_impl.cc
@@ -731,6 +731,11 @@ std::unique_ptr<base::SharedMemory> ChildThreadImpl::AllocateSharedMemory(
   return shared_buf;
 }
 
+void ChildThreadImpl::SetThreadAffinity(base::PlatformThreadId id,
+                                        base::ThreadPriority priority) {
+  Send(new ChildProcessHostMsg_SetThreadAffinity(id, priority));
+}
+
 bool ChildThreadImpl::OnMessageReceived(const IPC::Message& msg) {
   // Resource responses are sent to the resource dispatcher.
   if (resource_dispatcher_->OnMessageReceived(msg))