Add PDF compositor service

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index b3634808ed046646f90338d356974d5bf8985815..e245e0f04b355ca700a7cf6f5d8836c04cd04538 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -1001,11 +1001,6 @@ IPC::SyncMessageFilter* RenderThreadImpl::GetSyncMessageFilter() {
   return sync_message_filter();
 }
 
-scoped_refptr<base::SingleThreadTaskRunner>
-RenderThreadImpl::GetIOTaskRunner() {
-  return ChildProcess::current()->io_task_runner();
-}
-
 void RenderThreadImpl::AddRoute(int32_t routing_id, IPC::Listener* listener) {
   ChildThreadImpl::GetRouter()->AddRoute(routing_id, listener);
   auto it = pending_frame_creates_.find(routing_id);
@@ -1519,6 +1514,11 @@ void RenderThreadImpl::OnAssociatedInterfaceRequest(
     ChildThreadImpl::OnAssociatedInterfaceRequest(name, std::move(handle));
 }
 
+scoped_refptr<base::SingleThreadTaskRunner>
+RenderThreadImpl::GetIOTaskRunner() {
+  return ChildProcess::current()->io_task_runner();
+}
+
 bool RenderThreadImpl::IsGpuRasterizationForced() {
   return is_gpu_rasterization_forced_;
 }