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 da073cb259b6df21e665df76ab06b0951da9b183..f191e4f6727fbd9f6a0b8d88331d9178e5b0e890 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -1019,11 +1019,6 @@ 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);
@@ -1537,6 +1532,11 @@ 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_;
 }