Reify view ownership as a message pipe.

mojo/ui/gl_view.cc

Index: mojo/ui/gl_view.cc
diff --git a/mojo/ui/gl_view.cc b/mojo/ui/gl_view.cc
index d07b8cd74ef0bd82c87a4a75430de3be2143cddd..27b8c09a3430a8204774d68c5011e0fbd7d42096 100644
--- a/mojo/ui/gl_view.cc
+++ b/mojo/ui/gl_view.cc
@@ -9,11 +9,10 @@
 namespace mojo {
 namespace ui {
 
-GLView::GLView(
-    mojo::ApplicationImpl* app_impl,
-    const std::string& label,
-    const mojo::ui::ViewProvider::CreateViewCallback& create_view_callback)
-    : BaseView(app_impl, label, create_view_callback),
+GLView::GLView(mojo::ApplicationImpl* app_impl,
+               mojo::InterfaceRequest<mojo::ui::ViewOwner> view_owner_request,
+               const std::string& label)
+    : BaseView(app_impl, view_owner_request.Pass(), label),
       gl_context_owner_(ApplicationConnectorPtr::Create(
                             app_impl->CreateApplicationConnector())
                             .get()),