Wire input events through the ViewManagerClient interface.

mojo/services/view_manager/root_node_manager.h

Index: mojo/services/view_manager/root_node_manager.h
diff --git a/mojo/services/view_manager/root_node_manager.h b/mojo/services/view_manager/root_node_manager.h
index 1598e0dc35cb35ba8a2a536d2745e2d6fbeefe10..6581fedcf1ce5bdcbfd7adc07b5393394884fc38 100644
--- a/mojo/services/view_manager/root_node_manager.h
+++ b/mojo/services/view_manager/root_node_manager.h
@@ -16,6 +16,10 @@
 #include "mojo/services/view_manager/root_view_manager.h"
 #include "mojo/services/view_manager/view_manager_export.h"
 
+namespace ui {
+class Event;
+}
+
 namespace mojo {
 
 class ServiceProvider;
@@ -169,6 +173,8 @@ class MOJO_VIEW_MANAGER_EXPORT RootNodeManager : public NodeDelegate {
   virtual void OnNodeViewReplaced(const Node* node,
                                   const View* new_view,
                                   const View* old_view) OVERRIDE;
+  virtual void OnViewInputEvent(const View* view,
+                                const ui::Event* event) OVERRIDE;
 
   Context context_;