Implement TouchSelectionEditing controls for OOPIF.

content/browser/renderer_host/render_widget_host_view_aura.h

Index: content/browser/renderer_host/render_widget_host_view_aura.h
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.h b/content/browser/renderer_host/render_widget_host_view_aura.h
index 6d58da366d678963a0a140bfd4e9cadae77838f0..93e4be19235c3a8aa224b11f6abb00d82445a6e7 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -326,6 +326,9 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
     return event_handler_.get();
   }
 
+  TouchSelectionControllerClientManager*
+  touch_selection_controller_client_manager() override;
+
  protected:
   ~RenderWidgetHostViewAura() override;
 
@@ -575,6 +578,10 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
   // The last scroll offset of the view.
   gfx::Vector2dF last_scroll_offset_;
 
+  // The last selection bounds reported to the view.
+  gfx::SelectionBound selection_start_;
+  gfx::SelectionBound selection_end_;
+
   gfx::Insets insets_;
 
   std::vector<ui::LatencyInfo> software_latency_info_;