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 b4a4c9947634e29e1128b6c686ee7b76c6108c86..5eccf6ea28989f5488d991fe45633a757d13e7a4 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -325,6 +325,9 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
     return event_handler_.get();
   }
 
+  TouchSelectionControllerClientManager*
+  touch_selection_controller_client_manager() override;
+
  protected:
   ~RenderWidgetHostViewAura() override;
 
@@ -574,6 +577,10 @@ 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_;