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 66e549f010161c11e45898c4d49abe7bd1451209..e1eb031345562f5959911d19f499133d4670fd15 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -501,6 +501,11 @@ void RenderWidgetHostViewBase::RemoveObserver(
   observers_.RemoveObserver(observer);
 }
 
+TouchSelectionControllerClientManager*
+RenderWidgetHostViewBase::touch_selection_controller_client_manager() {
+  return nullptr;
+}
+
 bool RenderWidgetHostViewBase::IsChildFrameForTesting() const {
   return false;
 }