Reify view ownership as a message pipe.

examples/ui/spinning_cube/spinning_cube_view.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "examples/ui/spinning_cube/spinning_cube_view.h"
 
 #ifndef GL_GLEXT_PROTOTYPES
 #define GL_GLEXT_PROTOTYPES
 #endif
 
@@ skipping 36 matching lines @@
   bool use_x =
       std::abs(current.y - initial.y) < std::abs(current.x - initial.x);
   // Current direction is determined by comparison with previous point
   float delta = use_x ? (current.x - last.x) : (current.y - last.y);
   return delta > 0 ? -1 : 1;
 }
 }  // namespace
 
 SpinningCubeView::SpinningCubeView(
     mojo::ApplicationImpl* app_impl,
-    const mojo::ui::ViewProvider::CreateViewCallback& create_view_callback)
-    : GLView(app_impl, "SpinningCube", create_view_callback),
+    mojo::InterfaceRequest<mojo::ui::ViewOwner> view_owner_request)
+    : GLView(app_impl, view_owner_request.Pass(), "SpinningCube"),
       choreographer_(scene(), this),
       input_handler_(view_service_provider(), this),
       weak_ptr_factory_(this) {
   gl_renderer()->gl_context()->MakeCurrent();
   cube_.Init();
 }
 
 SpinningCubeView::~SpinningCubeView() {}
 
 void SpinningCubeView::OnLayout(mojo::ui::ViewLayoutParamsPtr layout_params,
@@ skipping 114 matching lines @@
   // Loop!
   choreographer_.ScheduleDraw();
 }
 
 void SpinningCubeView::DrawCubeWithGL() {
   cube_.set_size(size_.width, size_.height);
   cube_.Draw();
 }
 
 }  // namespace examples