Implement TouchSelectionEditing controls for OOPIF.

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index 3e055ea9e36ab52ad7702f571be515bcd918d7b1..98460d7a89e9da2c61e465db5aa1285e8992344f 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -481,6 +481,11 @@ void RenderWidgetHostViewBase::RemoveObserver(
   observers_.RemoveObserver(observer);
 }
 
+TouchSelectionControllerClientManager*
+RenderWidgetHostViewBase::touch_selection_controller_client_manager() {
+  return nullptr;
+}
+
 bool RenderWidgetHostViewBase::IsChildFrameForTesting() const {
   return false;
 }