mojo events: Add |screen_location| to LocationData.

mojo/examples/pepper_container_app/pepper_container_app.cc

Index: mojo/examples/pepper_container_app/pepper_container_app.cc
diff --git a/mojo/examples/pepper_container_app/pepper_container_app.cc b/mojo/examples/pepper_container_app/pepper_container_app.cc
index 18df756eba488fc5a296c7b6e145bb3f589e5598..e74ae8c1313e5b2d04cede82010e1f50da9a5a8a 100644
--- a/mojo/examples/pepper_container_app/pepper_container_app.cc
+++ b/mojo/examples/pepper_container_app/pepper_container_app.cc
@@ -74,7 +74,7 @@ class PepperContainerApp: public ApplicationDelegate,
 
   virtual void OnEvent(EventPtr event,
                        const mojo::Callback<void()>& callback) OVERRIDE {
-    if (!event->location.is_null()) {
+    if (!event->location_data.is_null()) {
       ppapi::ProxyAutoLock lock;
 
       // TODO(yzshen): Handle events.